Dell Latitude 5540: руководство по обслуживанию

Dimensions and weight

The following table lists the height, width, depth, and weight of your Latitude 5540.

Table 1. Dimensions and weightThe following table lists the height, width, depth, and weight of your Latitude 5540.
Description		Values
Height:
	Front height	20.80 mm (0.82 in.)
	Rear height	22.80 mm (0.90 in.)
Width		357.80 mm (14.09 in.)
Depth		233.30 mm (9.19 in.)
Weight NOTE:The weight of your computer depends on the configuration that is offered.		1.613 kg (3.56 lb)

Processor

The following table lists the details of the processors supported by your Latitude 5540.

Table 1. Processor
The following table provides the various processor options that are supported for Latitude 5540.
Description		Option one	Option two	Option three	Option four	Option five	Option six	Option seven	Option eight
Processor type		13^th Generation Intel Core i3-1315U	13^th Generation Intel Core i5-1335U	13^th Generation Intel Core i5-1345U vPro	13^th Generation Intel Core i5-1340P	13^th Generation Intel Core i5-1350P vPro	13^th Generation Intel Core i7-1355U	13^th Generation Intel Core i7-1365U vPro	13^th Generation Intel Core i7-1370P vPro
Processor wattage		15 W	15 W	15 W	28 W	28 W	15 W	15 W	28 W
Processor total core count		6	10	10	12	12	10	10	14
Performance-cores		2	2	2	4	4	2	2	6
Efficient-cores		4	8	8	8	8	8	8	8
Processor total thread counts		8	12	12	16	16	12	12	20
NOTE:Intel® Hyper-Threading Technology is only available on Performance-cores.
Processor speed		Up to 4.50 GHz	Up to 4.60 GHz	Up to 4.70 GHz	Up to 4.60 GHz	Up to 4.70 GHz	Up to 5 GHz	Up to 5.20 GHz	Up to 5.20 GHz
Performance-cores frequency
	Processor base frequency	1.20 GHz	1.30 GHz	1.60 GHz	1.90 GHz	1.90 GHz	1.70 GHz	1.80 GHz	1.90 GHz
	Maximum turbo frequency	4.50 GHz	4.60 GHz	4.70 GHz	4.60 GHz	4.70 GHz	5 GHz	5.20 GHz	5.20 GHz
Efficient-cores frequency
	Processor base frequency	0.90 GHz	0.90 GHz	1.20 GHz	1.40 GHz	1.40 GHz	1.20 GHz	1.30 GHz	1.40 GHz
	Maximum turbo frequency	3.30 GHz	3.40 GHz	3.50 GHz	3.40 GHz	3.50 GHz	3.70 GHz	3.90 GHz	3.90 GHz
Processor cache		10 MB	12 MB	12 MB	12 MB	12 MB	12 MB	12 MB	24 MB
Integrated graphics		Intel UHD Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics	Intel Iris X^e Graphics

Chipset

The following table lists the details of the chipset that is supported in your Latitude 5540.

Table 1. Chipset The following table lists the details of the chipset that is supported in your Latitude 5540.
Description	Values
Chipset	Integrated in the processor
Processor	13^th Generation Intel Core i3/i5/i7
DRAM bus width	64-bit
Flash EPROM	32 MB for non-vPro, 32 MB + 16 MB for vPro/vPro Essentials
PCIe bus	Up to Gen 4

Operating system

Your Latitude 5540 supports the following operating systems:

Windows 11 Home, 64-bit
Windows 11 Pro, 64-bit
Windows 11 Pro downgrade (Win 10 Pro image FI + Win 11 Pro DPK)
Ubuntu 22.04 LTS, 64-bit

Memory

The following table lists the memory specifications that are supported by your Latitude 5540.

Table 1. Memory specificationsThe following table lists the memory specifications of your computer.
Description	Values
Memory slots	Two-SODIMM slots
Memory type	Single-channel DDR4 Dual-channel DDR4 Single-channel DDR5 Dual-channel DDR5 NOTE:DDR4 memory is only supported on computers with 13th Generation Intel Core U-series processors. NOTE:DDR5 memory is only supported on computers with 13th Generation Intel Core P-series processors.
Memory speed	3200 MT/s 4800 MT/s 5200 MT/s
Maximum memory configuration	64 GB
Minimum memory configuration	8 GB
Memory size per slot	8 GB, 16 GB, or 32 GB
Memory configurations supported	8 GB, 1 x 8 GB, DDR4, 3200 MT/s, single-channel 16 GB, 2 x 8 GB, DDR4, 3200 MT/s, dual-channel 16 GB, 1 x 16 GB, DDR4, 3200 MT/s, single-channel 32 GB, 2 x 16 GB, DDR4, 3200 MT/s, dual-channel 64 GB, 2 x 32 GB, DDR4, 3200 MT/s, dual-channel 8 GB, 1 x 8 GB, DDR5, 4800 MT/s, single-channel 16 GB, 2 x 8 GB, DDR5, 4800 MT/s, dual-channel 16 GB, 1 x 16 GB, DDR5, 4800 MT/s, single-channel 32 GB, 2 x 16 GB, DDR5, 4800 MT/s, dual-channel 64 GB, 2 x 32 GB, DDR5, 4800 MT/s, dual-channel 8 GB, 1 x 8 GB, DDR5, 5200 MT/s, single-channel 16 GB, 2 x 8 GB, DDR5, 5200 MT/s, dual-channel 16 GB, 1 x 16 GB, DDR5, 5200 MT/s, single-channel 32 GB, 2 x 16 GB, DDR5, 5200 MT/s, dual-channel 64 GB, 2 x 32 GB, DDR5, 5200 MT/s, dual-channel

External ports and slots

The following table lists the external ports and slots of your Latitude 5540.

Table 1. External ports and slots
The following table lists ports and connectors available on Latitude 5540.
Description	Values
Network port	One RJ-45 port
USB ports	Two Thunderbolt 4 port Power Delivery and DisplayPort NOTE: You can connect a Dell Docking Station to this port. For more information, search in the Knowledge Base Resource at Dell Support site. One USB 3.2 Gen 1 port with PowerShare One USB 3.2 Gen 1 port
Audio port	One Universal audio jack
Video port(s)	One HDMI 2.0 port
Media-card reader	One microSD-card slot
Power-adapter port	USB Type-C power input
Security-cable slot	One security-cable slot (wedge-shaped)

Internal slots

The following table lists the internal slots of your Latitude 5540.

Table 1. Internal slotsThe following table lists the internal slots on your Latitude 5540.
Description	Values
M.2	One M.2 2230 slot for WiFi and Bluetooth combo card One M.2 2230/2280 slot for solid-state drive One M.2 2230 slot for solid-state drive One M.2 3042/3052 for WWAN card NOTE:To learn more about the features of different types of M.2 cards, search in the Knowledge Base Resource at Dell Support Site.

Ethernet

The following table lists the wired Ethernet Local Area Network (LAN) specifications of your Latitude 5540.

Table 1. Ethernet specifications
The following table provides the specifications of Ethernet that is supported by your Latitude 5540.
Description	Values
Model	Intel I219-V/Intel I219-LM
Transfer rate	10/100/1000 Mbps

Wireless module

The following table lists the Wireless Local Area Network (WLAN) modules that are supported on your Latitude 5540.

Table 1. Wireless module specifications
The following table provides the wireless module specifications of Latitude 5540.
Description	Option one	Option two
Model number	Realtek RTL8852BE	Intel AX211
Transfer rate	Up to 1201 Mbps	Up to 2400 Mbps
Frequency bands supported	2.4 GHz/5 GHz	2.4 GHz/5 GHz/6 GHz
Wireless standards	WiFi 802.11a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac) Wi-Fi 6 (WiFi 802.11ax)	WiFi 802.11a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac) Wi-Fi 6E (WiFi 802.11ax) NOTE: Wi-Fi 6 is supported in regions where Wi-Fi 6E is unavailable.
Encryption	64-bit/128-bit WEP AES-CCMP TKIP	64-bit/128-bit WEP AES-CCMP TKIP
Bluetooth wireless card	Bluetooth 5.3	Bluetooth 5.3
	NOTE:The functionality of the Bluetooth wireless card may vary depending on the operating system that is installed on your computer.

WWAN module

The following table lists the Wireless Wide Area Network (WWAN) modules that are supported in your Latitude 5540.

NOTE: The WWAN module is available only on certain configurations and in certain regions.

NOTE:Availability of the eSIM feature on this module depends on your region.

NOTE:For instructions on how to setup SIM or eSIM connections on your computer, see the SIM/eSIM Setup Guide for Windows available with your product documentation at Dell Support Site.

Table 1. WWAN module specificationsThe following table lists the Wireless Wide Area Network (WWAN) modules that are supported in your Latitude 5540.
Description	Option one	Option two
Model number	DW5823, Intel XMM 7560 R Global LTE-Advanced, CAT16	DW5931e, Intel 5G 5000 Global Gigabit NR/LTE, 3GPP Release 15
Form factor	M.2 3042 Key-B	M.2 3052 Key-B
Host interface	PCIe Gen2	PCIe Gen3
Network standard	LTE FDD/TDD, WCDMA/HSPA+,GPS/GLONASS/BDS/Galileo	NR FR1(Sub6) FDD/TDD, LTE FDD/TDD, WCDMA/HSPA+, GPS/GLONASS/Galileo/BDS/QZSS
Transfer data rate	Up to 1 Gbps DL (CAT16) Up 150 Mbps UL	SA: DL 4.67 Gbps/UL 1.25 Gbps NSA: DL 3.74 Gbps/UL 835Mbps9 LTE: DL 1.6 Gbps (CAT19)/UL 211Mbps (CAT18) UMTS: DL 384 kbps/UL 384 kbps DL DC-HSPA+: 42 Mbps (CAT24)/UL 11.5 Mbps (CAT7)
Operating frequency bands	LTE(B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17, B18, B19, B20, B25, B26, B28, B29, B30, B32, B34, B38, B39, B40, B41(HPUE), B42, B43, B46(receiver only), B48, B66, B71 WCDMA/HSPA+(1, 2, 4, 5, 8)	NR(n1, n2, n3, n5, n7, n8, n20, n25, n28, n30, n38, n40, n41, n48, n66, n71, n77, n78, n79) LTE (B1, B2, B3, B4, B5, B7, B8, B12, B13, B14, B17, B18, B19, B20, B25, B26, B28, B29, B30, B32, B34, B38, B39, B40, B41, B42, B43, B46, B48, B66, B71*) WCDMA/HSPA+ (1, 2, 4, 5, 8)
Power supply	DC 3.135 V to 4.40 V, typical 3.30 V	DC 3.135 V to 4.4 V, Typical 3.3 V
SIM card	Supported through external SIM slot	Supported through external SIM slot
eSIM with dual SIM (DSSA)	Supported (the availability of eSIM functionality embedded on the module is dependent on the region and specific carrier requirements)	Supported
Antenna diversity	Supported	Supported
Radio on/off	Supported	Supported
Wake on wireless	Supported	Supported
Temperature	Normal operating temperature: -10°C to + 55°C Extended Operating temperature: -20°C to +65°C	Normal operating temperature: -10°C to + 55°C Extended Operating temperature: -30°C to +75°C Storage temperature: -40°C to +85°C
Antenna connector	WWAN Main Antenna x 4 Supports 4x4 MIMO	WWAN Main Antenna x 4 Supports 4x4 MIMO
NOTE:For instructions to find your computer's International Mobile Equipment Identity (IMEI) number, search in the Knowledge Base Resource at Dell Support Site.

Audio

The following table lists the audio specifications of your Latitude 5540.

Table 1. Audio specifications
The following table provides the detailed audio specifications of Latitude 5540.
Description		Values
Audio controller		Realtek Waves, MaxxAudio 12.0
Stereo conversion		Supported
Internal audio interface		High definition audio interface
External audio interface		Universal Audio Jack/HDMI 2.0 port
Number of speakers		2
Internal-speaker amplifier		Not supported
External volume controls		Keyboard shortcut controls
Speaker output:
	Average	2 W
	Peak	2 W
Microphone		Digital-array microphones in camera assembly

Storage

This section lists the storage options on your Latitude 5540.

Your Latitude 5540 supports one of the following options

One M.2 2230/2280 solid-state drive or optional dual storage
NOTE:SSD Slot 1 on the system board supports M.2 2230 or M.2 2280 solid-state drives.

NOTE:SSD Slot 2 on the system board only supports Gen3 M.2 2230 solid-state drive.
One M.2 2230 self-encrypting drive

Table 1. Storage specifications
The following table provides the different storage options available on Latitude 5540.
Storage type	Interface type	Capacity
M.2 2230 solid-state drive	PCIe Gen3 x4 NVMe, up to 64 Gbps PCIe Gen4 x4 NVMe, up to 64 Gbps	Up to 2 TB
M.2 2280 solid-state drive	PCIe Gen4 x4 NVMe, up to 64 Gbps	Up to 1 TB

Media-card reader

The following table lists the media-card reader specifications of your Latitude 5540.

Table 1. Media-card reader (standard offering)The following table lists the media-card reader specifications of your Latitude 5540.
Media supported (Maximum capacity supported will vary by Flash Media Types)
Media Supported	Micro Secure Digital (mSD) Micro Secure Digital High Capacity (mSDHC) Micro Secure Digital Extended Capacity (mSDXC)
Support Specification Versions	microSD 4.0 card

Keyboard

The following table lists the keyboard specifications of your Latitude 5540.

Table 1. Keyboard specifications
The following table provides the detailed keyboard specifications of Latitude 5540.
Description	Values
Keyboard type	Standard backlit keyboard Standard non-backlit keyboard
Keyboard layout	QWERTY
Number of keys	English US, English International, Arabic, Canada bilingual (MUI), Chinese traditional, French-Canadian, Greek, Hebrew, Korean, Russian, Thai, Ukrainian: 99 keys French-Canadian Quebec, Brazilian, Belgian, Bulgarian, Czech & Slovakian (MUI), Danish, English UK, Estonian, French European, German, Hungarian, Italian, Nordic (MUI), Norwegian, Portugese Iberian, Slovenian, Spanish (Castillian), Spanish (Latin America), Swedish/Finnish, Swiss European (MUI), Turkish, Turkish F: 100 keys Japanese: 103 keys
Keyboard size	X= 18.05 mm key pitch Y= 18.05 mm key pitch
Keyboard shortcuts	Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions. To type the alternate character, press Shift and the desired key. To perform secondary functions, press Fn and the desired key. NOTE:You can define the primary behavior of the function keys (F1–F12) changing Function Key Behavior in the BIOS setup program. NOTE:If Copilot in Windows is not available on your computer, pressing the Copilot key launches Windows search. For more information about Copilot in Windows, search in the Knowledge Base Resource at the Dell Support site.

Keyboard function keys

The F1-F12 keys at the top of the keyboard are function keys. By default, these keys are used to perform specific functions defined by the software application in use.

You can run the secondary tasks that are indicated by the symbols on the function keys by pressing the function key with fn, for example, fn and F1. See the table below for the list of secondary tasks and the key combinations to run them.

NOTE:Keyboard characters may differ depending on the keyboard language configuration. Keys that are used for tasks remain the same, regardless of the keyboard language.

NOTE:You can define the primary behavior of function keys in the Function Key Behavior menu of the BIOS setup program.

Table 1. Secondary tasks of keyboard keys
The following table lists the keyboard shortcuts and their descriptions.
Key combination for task	What the task does
fn and F1	Operating system and application specific F1 behavior
fn and F2	Operating system and application specific F2 behavior
fn and F3	Operating system and application specific F3 behavior
fn and F4	Operating system and application specific F4 behavior
fn and F5	Operating system and application specific F5 behavior
fn and F6	Operating system and application specific F6 behavior
fn and F8	Operating system and application specific F8 behavior
fn and F9	Operating system and application specific F9 behavior
fn and F10	Operating system and application specific F10 behavior
fn and F11	Operating system and application specific F11 behavior
fn and F12	Operating system and application specific F12 behavior
fn and Right Ctrl	Open application menu
fn and Cursor up	Page up
fn and Cursor down	Page down

Keys with alternate characters

There are other keys on your keyboard with alternate characters. The symbols that are shown at the bottom of these keys are the main characters that are displayed when the key is pressed; the symbols that are shown at the top of these keys are displayed when the key is pressed with the shift key. For example, if you press 2, 2 is displayed; if you press Shift and 2, @ is displayed.

Camera

The following table lists the camera specifications of your Latitude 5540.

Table 1. Camera specifications
The following table provides the detailed camera specifications of Latitude 5540.
Description		Values
Number of cameras		One
Camera type		FHD RGB camera FHD RGB + IR camera FHD RGB+IR camera with Ambient Light Sensor, Express Sign-In with Presence Detection and Intelligent Privacy
Camera location		Front camera
Camera sensor type		CMOS sensor technology
Camera resolution:
	Still image	2.07 megapixel
	Video	1920 x 1080 (FHD) at 30 fps
Infrared camera resolution:
	Still image	0.23 megapixels
	Video	640 x 360 at 30 fps
Diagonal viewing angle:
	Camera	80 degrees
	Infrared camera	86.6 degrees

Touchpad

The following table lists the touchpad specifications of your Latitude 5540.

Table 1. Touchpad specifications
The following table provides the detailed touchpad specifications of Latitude 5540.
Description		Values
Touchpad resolution:		>300 DPI
Touchpad dimensions:
	Horizontal	115 mm (4.52 in.)
	Vertical	67 mm (2.64 in.)
Touchpad gestures		For more information about the touchpad gestures that are available on: Windows, see the Microsoft Knowledge Base article at Microsoft Support Site. Ubuntu, see Ubuntu Support Site.

Power adapter

The following table lists the power adapter specifications of your Latitude 5540.

Table 1. Power adapter specifications
The following table provides the detailed power adapter specifications of Latitude 5540.
Description		Option one	Option two	Option three
Type		60 W AC adapter, USB-C 60 W AC adapter, USB-C, 2-pin	65 W AC adapter	100 W AC adapter, USB-C
Power-adapter dimensions:
	Height	22 mm (0.86 in.)	28 mm (1.10 in.)	122 mm (4.80 in.)
	Width	55 mm (2.16 in.)	112 mm (4.41 in.)	60 mm (2.36 in.)
	Depth	66 mm (2.59 in.)	26.50 (1.04 in.)	26.50 (1.04 in.)
Input voltage		100 VAC–240 VAC	100 VAC–240 VAC	100 VAC–240 VAC
Input frequency		50 Hz–60 Hz	50 Hz–60 Hz	50 Hz–60 Hz
Input current (maximum)		1.70 A	1.70 A	1.70 A
Output current (continuous)		20 V/3 A (Continuous) 15 V/3 A (Continuous) 9 V/3 A (Continuous) 5 V/3 A (Continuous)	20 V/3.25 A (Continuous) 15 V/3 A (Continuous) 9 V/3 A (Continuous) 5 V/3 A (Continuous)	20 V/5 A (Continuous) 15 V/3 A (Continuous) 9 V/3 A (Continuous) 5 V/3 A (Continuous)
Rated output voltage		20 VDC/15 VDC/9 VDC/5 VDC	20 VDC/15 VDC/9 VDC/5 VDC	20 VDC/15 VDC/9 VDC/5 VDC
Temperature range:
	Operating	0°C to 40°C (32°F to 104°F)	0°C to 40°C (32°F to 104°F)	0°C to 40°C (32°F to 104°F)
	Storage	-20°C to 70°C (-4°F to 158°F)	-40°C to 70°C (-40°F to 158°F)	-40°C to 70°C (-40°F to 158°F)
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components.

Battery

The following table lists the battery specifications of your Latitude 5540.

Table 1. Battery specifications
The following table provides the detailed battery specifications of Latitude 5540.
Description		Option one	Option two	Option three	Option four
Battery type		3 cell, 42 WHr, Li-ion (ploymer), ExpressCharge + ExpressCharge Boost	3 cell, 42 WHr, Li-ion (ploymer), Long Cycle Life	3 cell, 54 WHr, Li-ion (ploymer), ExpressCharge + ExpressCharge Boost	3 cell, 54 WHr, Li-ion (ploymer), Long Cycle Life + ExpressCharge
Battery voltage		11.40 VDC	11.40 VDC	11.40 VDC	11.40 VDC
Battery weight (minimum)		0.19 kg (0.41 lb)	0.19 kg (0.41 lb)	0.22 kg (0.48 lb)	0.22 kg (0.48 lb)
Battery dimensions:
	Height	5.73 mm (0.22 in.)	5.73 mm (0.22 in.)	5.73 mm (0.22 in.)	5.73 mm (0.22 in.)
	Width	263 mm (10.35 in.)	263 mm (10.35 in.)	263 mm (10.35 in.)	263 mm (10.35 in.)
	Depth	68.90 mm (2.71 in.)	68.90 mm (2.71 in.)	68.90 mm (2.71 in.)	68.90 mm (2.71 in.)
Temperature range:
	Operating	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)
	Storage	-20°C to 65°C (4°F to 149°F)	-20°C to 65°C (4°F to 149°F)	-20°C to 65°C (4°F to 149°F)	-20°C to 65°C (4°F to 149°F)
Battery operating time		Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.	Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.	Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.	Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions.
Battery charging time (approximate) NOTE:Control the charging time, duration, start and end time, and so on, using the Dell Power Manager application. For more information on the Dell Power Manager, see, Me and My Dell on Dell website.		35% in 20 minutes with ExpressCharge Boost 80% in 1 hour with standard charge 100% in 2 hours with standard charge 100% in 3 hours with standard charge	80% in 1 hour with standard charge 100% in 2 hours with standard charge 100% in 3 hours with standard charge	35% in 20 minutes with ExpressCharge Boost 80% in 1 hour with standard charge 100% in 2 hours with standard charge 100% in 3 hours with standard charge	80% in 1 hour with standard charge 100% in 2 hours with standard charge 100% in 3 hours with standard charge
Coin-cell battery		CR2032	CR2032	CR2032	CR2032
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components. CAUTION:Dell Technologies recommends that you charge the battery regularly for optimal power consumption. If your battery charge is depleted, connect the power adapter, turn on your computer, and then restart your computer to reduce the power consumption.

Display

The following table lists the display specifications of your Latitude 5540.

Table 1. Display specifications
The following table provides the detailed display specifications of Latitude 5540.
Description		Option one	Option two	Option three
Display type		15-inch Full High Definition (FHD)	15-inch Full High Definition (FHD)	15-inch Full High Definition (FHD), ComfortView Plus Low Blue Light, Battery Saving
Touch options		No	Yes	No
Display-panel technology		In-Plane Switching (IPS)	In-Plane Switching (IPS)	In-Plane Switching (IPS)
Display-panel dimensions (active area):
	Height	193.60 mm (7.62 in.)	193.60 mm (7.62 in.)	193.60 mm (7.62 in.)
	Width	344.20 mm (13.55 in.)	344.20 mm (13.55 in.)	344.20 mm (13.55 in.)
	Diagonal	396 mm (15.60 in.)	396 mm (15.60 in.)	396 mm (15.60 in.)
Display-panel native resolution		1920 x 1080	1920 x 1080	1920 x 1080
Luminance (typical)		250 nits	250 nits	400 nits
Megapixels		2.07	2.07	2.07
Color gamut		45% NTSC	45% NTSC	100% sRGB
Pixels Per Inch (PPI)		141	141	141
Contrast ratio (typical)		700:1	700:1	800:1
Response time (maximum)		35 ms	35 ms	35 ms
Refresh rate		60 Hz	60 Hz	60 Hz
Horizontal view angle		80 +/- degrees	80 +/- degrees	80 +/- degrees
Vertical view angle		80 +/- degrees	80 +/- degrees	80 +/- degrees
Pixel pitch		0.179 x 0.179 mm	0.179 x 0.179 mm	0.179 x 0.179 mm
Power consumption (maximum)		4.60 W	4.60 W	4.50 W
Anti-glare vs glossy finish		Anti-glare	Anti-glare	Anti-glare

Fingerprint reader (optional)

The following table lists the specifications of the optional fingerprint-reader of your Latitude 5540.

Table 1. Fingerprint reader specifications
The following table provides the specifications of fingerprint reader of Latitude 5540.
Description	Values
Sensor technology	Capacitive
Sensor resolution	500 dpi
Sensor pixel size	108 x 88

Sensor

The following table lists the sensor of your Latitude 5540.

Table 1. Sensor The following table lists the sensor of your Latitude 5540.
Sensor support
Ambient Light Sensor
Accelerometer in the base: ST Micro LIS2DW12TR
Accelerometer in the hinge-up (Upsell config with Emza/ALS/IR camera): ST Micro LNG2DMTR

GPU—Integrated

The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Latitude 5540.

Table 1. GPU—Integrated
The following table provides the detailed integrated graphics specifications of Latitude 5540.
Controller	External display support	Memory size	Processor
Intel UHD Graphics	One HDMI 2.0 port	single-channel memory	13^th Generation Intel Core i3
Intel Iris X^e Graphics	One HDMI 2.0 port	dual-channel memory	13^th Generation Intel Core i5/17

GPU—Discrete

The following table lists the specifications of the discrete Graphics Processing Unit (GPU) supported by your Latitude 5540.

Table 1. GPU—Discrete
The following table provides the detailed discrete graphics specifications of Latitude 5540.
Controller	Memory size	Memory type
NVIDIA GeForce MX550	2 GB	GDDR6

External display support

The following table lists the external display support for your Latitude 5540.

Table 1. External display supportThe following table lists the external display support for your Latitude 5540.
Graphics card	Supported external displays with laptop display enabled	Supported external displays with laptop display disabled
Intel Iris X^e Graphics	3	4
Intel UHD Graphics	3	4
NOTE:For more information about external display support, see the External Display Connection Guide on Dell Support Site.

Hardware security

The following table lists the hardware security of your Latitude 5540.

Table 1. Hardware security The following table provides the hardware security details on your Latitude 5540.
Hardware security
Trusted Platform Module (TPM) 2.0 discrete
FIPS 140-2 certification for TPM
TCG Certificatication for TPM (Trusted Computing Group)
Finger Print Reader in Power Button tied to ControlVault 3
ControlVault 3 Advanced Authentication with FIPS 140-2 Level 3 Certification
Contacted Smart Card and ControlVault 3
Contactless Smart Card, NFC, and ControlVault 3
SED SSD NVMe, SSD and HDD (Opal and non-Opal) per SDL
FIPS 201 Full Scan FPR and ControlVault 3

Contactless smart-card reader

This section lists the contactless smart-card reader specifications of your Latitude 5540. This module is only available in computers shipped with Smart-card readers.

Table 1. Contactless smart-card reader specificationsThe following table lists the contactless smart-card reader specifications on your Latitude 5540.
Title	Description	Dell ControlVault 3 contactless smart-card reader with NFC
Felica Card Support	Reader and software capable of supporting Felica contactless cards	Yes
ISO 14443 Type A Card Support	Reader and software capable of supporting ISO 14443 Type A contactless cards	Yes
ISO 14443 Type B Card Support	Reader and software capable of supporting ISO 14443 Type B contactless cards	Yes
ISO/IEC 21481	Reader and software capable of supporting ISO/IEC 21481 compliant contactless cards and tokens	Yes
ISO/IEC 18092	Reader and software capable of supporting ISO/IEC 21481 compliant contactless cards and tokens	Yes
ISO 15693 Card Support	Reader and software capable of supporting ISO15693 contactless cards	Yes
NFC Tag Support	Supports reading and processing of NFC compliant tag information	Yes
NFC Reader Mode	Support for NFC Forum Defined Reader mode	Yes
NFC Writer Mode	Support for NFC Forum Defined Writer mode	Yes
NFC Peer-to-Peer Mode	Support for NFC Forum Defined Peer to Peer mode	Yes
NFC Proximity OS Interface	Enumerates NFP (Near Field Proximity) device for OS to utilize	Yes
PC/SC OS interface	Personal Computer/Smart Card specification for integration of hardware readers into personal computer environments	Yes
CCID driver compliance	Common driver support for Integrated Circuit Card Interface Device for OS level drivers	Yes
Dell ControlVault support	Device connects to Dell ControlVault for usage and processing	Yes

NOTE:125 Khz proximity cards are not supported.

Table 2. Supported cardsThe following table lists the supported cards on your Latitude 5540.
Manufacturer	Card
HID	jCOP readertest3 A card (14443a)
	1430 1L
	DESFire D8H
	iClass (Legacy)
	iClass SEOS
NXP/Mifare	Mifare DESFire 8K White PVC Cards
	Mifare Classic 1K White PVC Cards
	NXP Mifare Classic S50 ISO Card
G&D	idOnDemand - SCE3.2 144K
	SCE6.0 FIPS 80K Dual+ 1 K Mifare
	SCE6.0 nonFIPS 80K Dual+ 1 K Mifare
	SCE6.0 FIPS 144K Dual + 1K Mifare
	SCE6.0 nonFIPS 144K Dual + 1 K Mifare
	SCE7.0 FIPS 144K
Oberthur	idOnDemand - OCS5.2 80K
Oberthur	ID-One Cosmo 64 RSA D V5.4 T=0 card

Contacted smart-card reader

The following table lists the contacted smart-card reader specifications of your Latitude 5540.

Table 1. Contacted smart-card reader specificationsThe following table lists the contacted smart-card reader specifications on your Latitude 5540.
Title	Description	Dell ControlVault 3 smart-card reader
ISO 7816 -3 Class A Card Support	Reader capable of reading 5V powered smart mcard	Yes
ISO 7816 -3 Class B Card Support	Reader capable of reading 3V powered smart card	Yes
ISO 7816 -3 Class C Card support	Reader capable of reading 1.8V powered smart card	Yes
ISO 7816-1 Compliant	Specification for the reader	Yes
ISO 7816 -2 Compliant	Specification for smart card device physical characteristics (size, location of connection points, etc.)	Not applicable
T=0 support	Cards support character level transmission	Yes
T=1 support	Cards support block level transmission	Yes
EMVCo Compliant	Compliant with EMVCo (for electronic payment standards) smart card standards as posted to www.emvco.com	Yes
EMVCo Certified	Formally certified based on EMVCO smart card standards	Yes
PC/SC OS interface	Personal Computer/Smart Card specification for integration of hardware readers into personal computer environments	Yes
CCID driver compliance	Common driver support for Integrated Circuit Card Interface Device for OS level drivers.	Yes
Windows Certified	Device certified by WHCK	Yes
FIPS 201 (PIV/HSPD-12) Compliant via GSA	Device compliant with FIPS 201/PIV/HSPD-12 requirements	Yes

Operating and storage environment

This table lists the operating and storage specifications of your Latitude 5540.

Airborne contaminant level: G1 as defined by ISA-S71.04-1985

Table 1. Computer environment
The following table lists the operating and storage environment conditions of Latitude 5540.
Description	Operating	Storage
Temperature range	0°C to 35°C (32°F to 95°F)	-40°C to 65°C (-40°F to 149°F)
Relative humidity (maximum)	10% to 90% (non-condensing)	0% to 95% (non-condensing)
Vibration (maximum)^*	0.66 GRMS	1.30 GRMS
Shock (maximum)	110 G†	160 G†
Altitude range	-15.2 m to 3048 m (-49.87 ft to 10000 ft)	-15.2 m to 10668 m (-49.87 ft to 35000 ft)
CAUTION:Operating and storage temperature ranges may differ among components, so operating or storing the device outside these ranges may impact the performance of specific components.

^{* Measured using a random vibration spectrum that simulates the user environment.}

^{† Measured using a 2 ms half-sine pulse.}

Dell support policy

For information about Dell support policy, search in the Knowledge Base Resource at Dell Support Site.

ComfortView Plus

WARNING:Prolonged exposure to blue light from the display may lead to long-term effects such as eye strain, eye fatigue, or damage to the eyes.

Blue light is a color in the light spectrum which has a short wavelength and high energy. Chronic exposure to blue light, particularly from digital sources may disrupt sleep patterns and cause long-term effects such as eye strain, eye fatigue, or damage to the eyes.

The display on this computer is designed to minimize blue light and complies with TÜV Rheinland's requirement for low blue light displays.

Low blue light mode is enabled at the factory, so no further configuration is necessary.

To reduce the risk of eye strain, it is also recommended that you:

Position the display at a comfortable viewing distance between 20 and 28 inches (50 cm and 70 cm) from your eyes.
Blink frequently to moisten your eyes, wet your eyes with water, or apply suitable eye drops.
Take an extended break for 20 minutes every two hours.
Look away from your display, and gaze at a distant object at 20 ft (609.60 cm) away for at least 20 seconds during each break.

Using the privacy shutter

Slide the privacy shutter to the left to access the camera lens.
Slide the privacy shutter to the right to cover the camera lens.
Figure 1. Camera shutter

Dell Optimizer

This section provides the Dell Optimizer specifications of your Latitude 5540.

On Latitude 5540 with Dell Optimizer, the following features are supported:

ExpressConnect—Automatically joins the access point with the strongest signal, and directs bandwidth to conferencing applications when in use.
ExpressSign-in—The Intel Context Sensing Technology's proximity sensor detects your presence to instantly wake up the computer and login using the IR camera and Windows Hello feature. Windows locks when you walk away.
ExpressResponse—Prioritizes the most important applications. Applications open faster and perform better.
ExpressCharge—Extends the battery runtime and improves battery performance by adapting to your patterns.
Intelligent Audio—Collaborate like you’re in the same room. Intelligent Audio enhances your audio quality and reduces background noises, so you can hear and be heard, creating a better conference experience for all.

For more information about configuring and using these features, see Dell Optimizer User Guide.