Dell 14 Plus DB14255: руководство по обслуживанию

Dimensions and weight

The following table lists the height, width, depth, and weight of your Dell 14 Plus DB14255.

Table 1. Dimensions and weightThe following table lists the height, width, depth, and weight of your Dell 14 Plus DB14255.
Description		Values
Height:
	Front height	14 mm (0.55 in.)
	Rear height	14.70 mm (0.58 in.)
Width		314 mm (12.36 in.)
Depth		226.15 mm (8.90 in.)
Weight NOTE:The weight of your computer depends on the configuration that you ordered.		Non-touch screen: 1.52 kg (3.35 lb) Touch screen: 1.58 kg (3.48 lb)

Processor

The following tables list the details of the processors that are supported in your Dell 14 Plus DB14255.

Table 1. Processor The following tables list the details of the processors that are supported in your Dell 14 Plus DB14255.
Description	Option 1	Option 2
Processor type	China, Hong Kong, Taiwan: AMD Ryzen AI 5 H 340 Rest of the World: AMD Ryzen AI 5 340	China, Hong Kong, Taiwan: AMD Ryzen AI 7 H 350 Rest of the World: AMD Ryzen AI 7 350
Processor wattage	21 W	21 W
Processor core count	6	8
Processor thread count	12	16
Processor speed	Up to 4.8 GHz	Up to 5.0 GHz
Processor cache	22 MB	24 MB
Integrated graphics	AMD Radeon 840M Graphics	AMD Radeon 860M Graphics
AI technology	AMD Ryzen AI	AMD Ryzen AI
Neural Processing Unit (NPU) performance	Up to 50 TOPS	Up to 50 TOPS
NOTE:Tera Operations Per Second (TOPS) is an AI performance metric that measures how many trillions of operations per second an AI processor can perform.

Chipset

The following table lists the details of the chipset that is supported by your Dell 14 Plus DB14255.

Table 1. Chipset The following table lists the details of the chipset that is supported by your Dell 14 Plus DB14255.
Description	Values
Chipset	Integrated in the processor
Processor	China, Hong Kong, Taiwan: AMD Ryzen AI 5 H 340/7 H 350 Rest of the World: AMD Ryzen AI 5 340/7 350
DRAM bus width	Dual-channel 64-bit
Flash EPROM	32 MB
PCIe bus	Up to Gen4

Operating system

Your Dell 14 Plus DB14255 supports the following operating systems:

China, Hong Kong, Taiwan:
- Windows 11 Home, AI+PC
- Windows 11 Pro, AI+PC
Rest of the World:
- Windows 11 Home, Copilot+PC
- Windows 11 Pro, Copilot+PC

Memory

The following table lists the memory specifications of your Dell 14 Plus DB14255.

Table 1. Memory specifications
The following table provides the detailed memory specifications of Dell 14 Plus DB14255.
Description		Values
Memory slots		Onboard
Memory type		Dual-channel LPDDR5x
Memory speed		7500 MT/s
Maximum memory configuration		32 GB
Minimum memory configuration		16 GB
Memory configurations supported		16 GB: 2 x 8 GB, LPDDR5x, 7500 MT/s, dual-channel 32 GB: 2 x 16 GB, LPDDR5x, 7500 MT/s, dual-channel

External ports and slots

The following table lists the external ports and slots on your Dell 14 Plus DB14255.

Table 1. External ports and slots
The following table lists ports and connectors available on Dell 14 Plus DB14255.
Description	Values
USB ports	One USB 3.2 Gen 1 (5 Gbps) port Two USB 3.2 Gen 2 (10 Gbps) Type-C ports with DisplayPort 1.4 and Power Delivery NOTE: You can connect a Dell Docking Station to this port. For more information, search in the Knowledge Base Resource at Dell Support Site.
Audio port	One headset (headphone and microphone combo) port
Video port(s)	One HDMI 1.4 port
Media-card reader	Not supported
Power-adapter port	Supported through USB Type-C port
Security-cable slot	Not supported

Internal slots

The following table lists the internal slots of your Dell 14 Plus DB14255.

Table 1. Internal slotsThe following table lists the internal slots on your Dell 14 Plus DB14255.
Description	Values
M.2	One M.2 2230 slot for Wi-Fi and Bluetooth combo card One M.2 2230 slot for solid-state drive NOTE:To learn more about the features of different types of M.2 cards, search Dell Support Site.

Wireless module

The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Dell 14 Plus DB14255.

Table 1. Wireless module specifications
The following table provides the wireless module specifications of Dell 14 Plus DB14255.
Description	Values
Model number	MediaTek Wi-Fi 7 MT7925
Transfer rate	2882 Mbps
Frequency bands supported	2.4 GHz/5 GHz/6 GHz
Wireless standards	WiFi 802.11 a/b/g Wi-Fi 4 (WiFi 802.11n) Wi-Fi 5 (WiFi 802.11ac) Wi-Fi 6 (WiFi 802.11ax) Wi-Fi 7 (WiFi 802.11be)
Encryption	64-bit/128-bit WEP AES-CCMP TKIP
Bluetooth wireless card NOTE:The functionality of the Bluetooth wireless card may vary based on the operating system.	Bluetooth 5.4

Audio

The following table lists the audio specifications of your Dell 14 Plus DB14255.

Table 1. Audio specifications
The following table provides the detailed audio specifications of Dell 14 Plus DB14255.
Description		Values
Audio controller		Realtek ALC3204
Stereo conversion		Supported
Internal audio interface		High Definition Audio (HDA)
External audio interface		One headset (headphone and microphone combo) port
Number of speakers		2
Internal-speaker amplifier		Supported (audio codec integrated)
External volume controls		Keyboard shortcut controls
Speaker output:
	Average	2 W
	Peak	2.5 W
Microphone		Digital-array microphones in camera assembly

Storage

This section lists the storage options on your Dell 14 Plus DB14255.

Your Dell 14 Plus DB14255 supports one M.2 2230 solid-state drive. The primary drive is the M.2 2230 solid state drive.

Table 1. Storage specifications
The following table provides the different storage options available on Dell 14 Plus DB14255.
Storage type	Interface type	Capacity
M.2 2230 solid state drive	QLC Gen4 PCIe NVMe	512 GB/1 TB/2 TB
M.2 2230 solid state drive	TLC Gen4 PCIe NVMe	1 TB

Keyboard

The following table lists the keyboard specifications of your Dell 14 Plus DB14255.

Table 1. Keyboard specifications
The following table provides the detailed keyboard specifications of Dell 14 Plus DB14255.
Description	Values
Keyboard type	Standard Copilot key hotkey backlit keyboard
Keyboard layout	QWERTY
Number of keys	United States and Canada: 79 keys United Kingdom: 80 keys Japan: 83 keys Brazil: 81 keys
Key pitch	X = 19.05 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.

Keyboard function keys

NOTE:Keyboard characters may differ depending on the keyboard language configuration. Keys that are used for shortcuts remain the same across all language configurations.

Some keys on your keyboard have two symbols on them. These keys can be used to type alternate characters or to perform secondary functions. The symbol that is shown on the lower part of the key refers to the character that is typed out when the key is pressed. If you press shift and the key, the symbol that is shown on the upper part of the key is typed out. For example, if you press 2, 2 is typed out; if you press Shift + 2, @ is typed out.

The keys F1-F12 at the top row of the keyboard are function keys for multimedia control, as indicated by the icon on the key. Press the function key to enable the task represented by the icon. For example, pressing F1 mutes the audio (see the table below).

However, if the function keys F1-F12 are needed for specific software applications, multimedia functionality can be disabled by pressing fn + esc. Later, multimedia control can be invoked by pressing fn and the respective function key. For example, mute audio by pressing fn + F1.

Table 1. Function key primary behavior
The following table lists the keyboard shortcuts and their descriptions.
Function key	Primary behavior
F1	Mute or unmute audio
F2	Decrease volume
F3	Increase volume
F4	Play or Pause
F5	Turn on or turn off keyboard backlight. NOTE:Toggle to cycle the keyboard backlight status through off, low-backlight, and high-backlight.
F6	Decrease brightness
F7	Increase brightness
F8	Switch to external display
F10	Print screen
F11	Home
F12	End

The fn key is also used with selected keys on the keyboard to invoke secondary functions.

Table 2. Secondary behaviorThe following table lists the secondary behavior of each key with the Function (fn) key.
Function key	Secondary behavior
fn + esc	Toggle fn-key lock
fn + S	Toggle scroll lock
fn + B	Pause or Break
fn + R	System request
fn + P	Privacy screen
fn + Copilot	Open the application menu
fn + spacebar	Open the emoji menu
fn + T	Toggle ultra performance mode
fn + Left arrow	Home
fn + Right arrow	End

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 Dell 14 Plus DB14255.

Table 1. Camera specifications
The following table provides the detailed camera specifications of Dell 14 Plus DB14255.
Description		Values
Number of cameras		One
Camera type		FHD
Camera location		Front
Camera sensor type		CMOS sensor technology
Camera resolution:
	Still image	2.07 megapixel
	Video	1920 x 1080 (FHD) at 30 fps
Diagonal viewing angle		Non-touch screen: 80.2 degrees Touch screen: 82.2 degrees

Touchpad

The following table lists the touchpad specifications of your Dell 14 Plus DB14255.

Table 1. Touchpad specifications
The following table provides the detailed touchpad specifications of Dell 14 Plus DB14255.
Description		Values
Touchpad resolution:		>300 DPI
Touchpad dimensions:
	Horizontal	115
	Vertical	80
Touchpad gestures		For more information about the touchpad gestures available on Windows, search Microsoft Support Site.

Power adapter

The following table lists the power adapter specifications of your Dell 14 Plus DB14255.

Table 1. Power-adapter specifications
The following table provides the detailed power adapter specifications of Dell 14 Plus DB14255.
Description		Values
Type		65 W AC adapter, USB-C
Power-adapter dimensions:
	Height	28 mm (1.10 in.)
	Width	51 mm (2.01 in.)
	Depth	112 mm (4.41 in.)
Input voltage		100 VAC–240 VAC
Input frequency		50 Hz–60 Hz
Input current (maximum)		1.70 A
Output current (continuous)		20 V/3.25 A (continuous) 15 V/3 A (continuous) 9 V/3 A (continuous) 5 V/3 A (continuous)
Rated output voltage		20 V 15 V 9 V 5 V
Temperature range:
	Operating	0°C to 40°C (32°F to 104°F)
	Storage	–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.

Power adapter requirements of Dell 14 Plus DB14255

NOTE:If you did not purchase the Dell-branded power adapter that is recommended for your computer, ensure that the power adapter you use meets the following requirements.

The following table lists the power adapter requirements for your Dell 14 Plus DB14255.

Table 1. Power adapter requirementsThe following table lists the power adapter requirements for your Dell 14 Plus DB14255.
Description	Value
Power that is required from a power adapter to achieve optimal performance	65 W
Power that charges the computer at a slower speed NOTE:A warning message may appear informing you about the use of a lower-powered adapter and slower charging speed.	Less than 65 W
Minimum power that is required from a power adapter to operate the computer and charge the battery NOTE:A warning message appears informing you about the use of a lower-powered adapter and slower charging speed.	45 W
USB Power Delivery (PD) fast charging	Supported
ExpressCharge mode	Supported NOTE:Ensure that the computer with a 64 Wh battery is connected to a 65 W power adapter for this feature to be supported. NOTE:ExpressCharge mode must also be enabled in the BIOS Setup screen. Select Power > Battery Configuration > ExpressCharge, then press Enter.

Battery

The following table lists the battery specifications of your Dell 14 Plus DB14255.

Table 1. Battery specifications
The following table provides the detailed battery specifications of Dell 14 Plus DB14255.
Description		Values
Battery type		4-cell, 64 Wh Lithium Ion, ExpressCharge
Battery voltage		15.20 VDC
Battery weight (maximum)		0.26 kg (0.57 lb)
Battery dimensions:
	Height	5.75 mm (0.23 in.)
	Width	271.90 mm (10.70 in.)
	Depth	82 mm (3.23 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)
	Storage	–20°C to 60°C (–4°F to 140°F)
Battery operating time		Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions
Battery charging time (approximate) NOTE:You can control the charging time, duration, start and end time, and so on, using the Dell Power Manager application. For more information about Dell Power Manager, search Dell Support Site.		ExpressCharge: 2 hours Standard charge: 3 hours (when the computer is off)
Coin-cell battery		Not supported
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.

Power requirements (for computers shipped with 4-cell, 64 Wh battery)

NOTE: The information in this section is applicable to the European Union (EU) countries.

The power that is delivered by the charger must be between a minimum of 45 Watts that is required by the radio equipment, and a maximum of 63 Watts in order to achieve the maximum charging speed.

This computer supports USB Power Delivery (PD) fast charging.

Display

The following table lists the display specifications of your Dell 14 Plus DB14255.

Table 1. Display specifications
The following table provides the detailed display specifications of Dell 14 Plus DB14255.
Description		Option 1	Option 2	Option 3
Display type		14-inch, Full High Definition Plus (FHD+), ComfortView	14-inch, Full High Definition Plus (FHD+), ComfortView	14-inch, QHD+, ComfortView Plus
Touch options		No	Yes	No
Display-panel technology		Wide-Viewing Angle	Wide-Viewing Angle	Wide-Viewing Angle
Display-panel dimensions (active area):
	Height	301.59 mm (11.87 in.)	301.59 mm (11.87 in.)	301.59 mm (11.87 in.)
	Width	188.5 mm (7.42 in.)	188.5 mm (7.42 in.)	188.5 mm (7.42 in.)
	Diagonal	355.65 mm (14 in.)	355.65 mm (14 in.)	355.65 mm (14 in.)
Display-panel native resolution		1920 x 1200	1920 x 1200	2560 x 1600
Luminance (typical)		300 nits	300 nits	300 nits
Megapixels		2.30	2.30	4.09
Color gamut		45% NTSC (typical)	45% NTSC (typical)	100% sRGB (typical)
Pixels Per Inch (PPI)		162	162	216
Contrast ratio (minimum)		600: (minimum), 800:1 (typical)	600: (minimum), 800:1 (typical)	1000: (minimum), 1200:1 (typical)
Response time (maximum)		35 millisecond	35 millisecond	35 millisecond
Refresh rate		60 Hz	60 Hz	90 Hz
Horizontal view angle		80 +/– degrees (minimum), +/– 85 degrees (typical)	80 +/– degrees (minimum), +/– 85 degrees (typical)	80 +/– degrees (minimum), +/– 85 degrees (typical)
Vertical view angle		80 +/– degrees (minimum), +/– 85 degrees (typical)	80 +/– degrees (minimum), +/– 85 degrees (typical)	80 +/– degrees (minimum), +/– 85 degrees (typical)
Pixel pitch		0.157	0.157	0.1178
Power consumption (maximum)		3.68 W without touch @Mosaic	3.68 W without touch @Mosaic	4.63 W at mosaic pattern 90 Hz
Anti-glare vs glossy finish		Anti-glare	Glossy	Anti-glare

Fingerprint reader

The following table lists the fingerprint-reader specifications of your Dell 14 Plus DB14255.

Table 1. Fingerprint reader specifications
The following table provides the specifications of fingerprint reader of Dell 14 Plus DB14255.
Description	Values
Sensor technology	Capacitive
Sensor resolution	500 dpi
Sensor pixel size	108 mm x 88 mm

GPU—Integrated

The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Dell 14 Plus DB14255.

Table 1. GPU—Integrated
The following table provides the detailed integrated graphics specifications of Dell 14 Plus DB14255.
Controller	Memory size	Processor
AMD Radeon 840M Graphics	Shared system memory	AMD Ryzen AI 5 340
AMD Radeon 860M Graphics	Shared system memory	AMD Ryzen AI 7 350

External display support

The following table lists the external display support for your Dell 14 Plus 2-in-1 DB04250.

Table 1. External display supportThe following table lists the external display support for your Dell 14 Plus DB14255.
Graphics card	Supported external displays with laptop display enabled	Supported external displays with laptop display disabled
iGPU	2	3

Operating and storage environment

This table lists the operating and storage specifications of your Dell 14 Plus DB14255.

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 Dell 14 Plus DB14255.
Description	Operating	Storage
Temperature range	0°C to 40°C (32 °F to 104°F)	–40°C to 65°C (–40°F to 149°F)
Relative humidity (maximum)	90% (non-condensing)	95% (non-condensing)
Vibration (maximum)^*	0.66 GRMS	Not available
Shock (maximum)	140 G†	Not available
Altitude range	Not available	Not available
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.}

ComfortView

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.

Dell ComfortView software technology reduces harmful blue light emissions to make extended screen time easy on your eyes.

ComfortView mode can be enabled and configured using the Dell CinemaColor application.

ComfortView mode complies with TÜV Rheinland's requirement for low blue light displays.

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.

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.