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Dell Inspiron 3785: технические характеристики и спецификации

Dimensions and weight

Table 1. Dimensions and weight

The following table provides the detailed display specifications of Inspiron 3785.

DescriptionValues
Height:
Front

21.86 mm (0.86 in.)

Rear

25.60 mm (1.01 in.)

Width

415.4 mm (16.35 in.)

Depth

279.2 mm (10.99 in.)

Weight

3.03 kg (6.68 lb)

NOTE: The weight of your computer depends on the configuration ordered and the manufacturing variability.

Processors

Table 1. Processors

The following table provides the various processor options supported for Inspiron 3785.

DescriptionValues
Processors

AMD Ryzen 3 2300U

AMD Ryzen 5 2500U

Wattage

15 W

15 W

Core count

4

4

Thread count

4

8

Speed

Up to 3.4 GHz

Up to 3.6 GHz

L2 Cache

2 MB

2 MB

L3 Cache

4 MB

4 MB

Integrated graphics

Radeon Vega 6

Radeon Vega 8

Chipset

Table 1. Chipset

The following table provides the chipset specifications for Inspiron 3785.

DescriptionValues
Chipset

Integrated in the processor

Processor
  • AMD Ryzen 3 2300U
  • AMD Ryzen 5 2500U
DRAM bus width

64-bit

Flash EPROM

16 MB

PCIe bus

Up to Gen3

Operating system

  • Windows 10 Home (64-bit)
  • Windows 10 Professional (64-bit)
  • Ubuntu

Memory

Table 1. Memory specifications

The following table provides the detailed memory specifications of Inspiron 3785.

DescriptionValues
Slots

Two SODIMM slots

Type

Dual-channel DDR4

Speed

Up to 2400 MHz

Maximum memory

16 GB

Minimum memory

4 GB

Memory size per slot

4 GB, 8 GB, 16 GB

Configurations supported
  • 4 GB DDR4 at 2400 MHz (1 x 4 GB)
  • 8 GB DDR4 at 2400 MHz (2 x 4 GB)
  • 8 GB DDR4 at 2400 MHz (1 x 8 GB)
  • 12 GB DDR4 at 2400 MHz (1 x 8 GB + 1 x 4 GB)
  • 16 GB DDR4 at 2400 MHz (2 x 8 GB)
  • 16 GB DDR4 at 2400 MHz (1 x 16 GB)

Ports and connectors

Table 1. Ports and connectors

The following table lists ports and connectors available on Inspiron 3785.

External:
Network

One RJ-45 port

USB
  • Two USB 3.1 Gen 1 ports
  • One USB 2.0 port
Audio

One headset (headphone and microphone combo) port

Video

One HDMI 1.4b port

Media card reader

One SD-card slot

Docking port

Not supported

Power adapter port

One 4.5 mm x 2.9 mm DC in

Security

One security-cable slot (wedge-shaped)

Internal:
M.2
  • One M.2 slot for Wi-Fi and Bluetooth combo card
  • One M.2 2280 slot for solid-state drive
NOTE: To learn more about the features of different types of M.2 cards, see the knowledge base article SLN301626.

Communications

Ethernet

Table 1. Ethernet specificationsProvides the Ethernet specifications of your computer.
DescriptionValues
Model number

Ethernet controller integrated to the system board

Transfer rate

10/100 Mbps

Wireless module

Table 2. Wireless module specificationsThe following table provides the wireless module specifications of your computer.
DescriptionValues
Model number

Qualcomm QCA9565 (DW1707)

Qualcomm QCA9377 (DW1810)

Qualcomm QCA61x4A (DW1820)

Transfer rate

Up to 150 Mbps

Up to 433 Mbps

Up to 867 Mbps

Frequency bands supported

Dual band 2.4 GHz

Dual band 2.4 GHz/5 GHz

Dual band 2.4 GHz/5 GHz

Wireless standards

WiFi 802.11b/g/n

WiFi 802.11a/b/g/n/ac

WiFi 802.11a/b/g/n/ac

Encryption
  • 64-bit/128-bit WEP
  • AES-CCMP
  • TKIP
  • 64-bit/128-bit WEP
  • AES-CCMP
  • TKIP
  • 64-bit/128-bit WEP
  • AES-CCMP
  • TKIP
Bluetooth

Bluetooth 4.0

Bluetooth 4.2

Bluetooth 4.2

Audio

Table 1. Audio specifications

The following table provides the detailed audio specifications of Inspiron 3785.

DescriptionValues
Controller

Realtek ALC3234

Stereo conversion

Supported

Internal interface

High-definition audio

External interface

Headset combo jack (stereo headphones/microphone-in)

Speakers

Two

Internal speaker amplifier

Supported

External volume controls

Keyboard shortcuts

Speaker output:
Average

2 W

Peak

2.5 W

Subwoofer output

Not supported

Microphone

Supported

Storage

Table 1. Storage specifications

The following table provides the different storage options available on your computer.

Storage typeInterface typeCapacity

One 2.5-inch hard drive

SATA AHCI, up to 6 Gbps

  • 500 GB (5400 RPM/7200 RPM)
  • 1 TB (5400 RPM/7200 RPM)
  • 2 TB (5400 RPM)

One M.2 2280 solid-state drive

PCIe Gen3.0x4 NVMe, up to 32 Gbps

Up to 256 GB

Optical drive

9.5 mm DVD-RW

One slimline DVD-RW

Media-card reader

Table 1. Media-card reader specifications

The following table provides the media-card specifications of Inspiron 3785.

DescriptionValues
Type

One SD-card slot

Cards supported
  • Secure Digital (SD)
  • Secure Digital High Capacity(SDHC)
  • Secure Digital Extended Capacity(SDXC)

Keyboard

Table 1. Keyboard specifications

The following table provides the detailed keyboard specifications of Inspiron 3785.

DescriptionValues
Type
  • Standard keyboard
  • Backlit keyboard (optional)
Layout

QWERTY

Number of keys
  • United States and Canada: 101 keys
  • United Kingdom: 102 keys
  • Japan: 105 keys
Size

X = 19.05 mm key pitch

Y = 18.05 mm key pitch

Shortcut keys
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) by changing Function Key Behavior in BIOS setup program.
Keyboard shortcuts

Camera

Table 1. Camera specifications

The following table provides the detailed camera specifications of Inspiron 3785.

DescriptionValues
Number of cameras

One

Type

HD RGB camera

Location

Front (above the LCD screen)

Sensor type

CMOS sensor technology

Resolution:
Still image

0.92 megapixel

Video

1280 x 720 (HD) at 30 fps

Diagonal viewing angle

78.6 degrees

Touchpad

Table 1. Touchpad specifications

The following table provides the detailed touchpad specifications of Inspiron 3785.

DescriptionValues
Resolution:
Horizontal

3215

Vertical

2429

Dimensions:
Horizontal

105 mm (4.13 in.)

Vertical

80 mm (3.15 in.)

Touchpad gestures

For more information about touchpad gestures for Windows 10, see the Microsoft knowledge base article 4027871 at support.microsoft.com.

Power adapter

Table 1. Power adapter specifications

The following table provides the detailed power adapter specifications of Inspiron 3785.

DescriptionValues
Type

E4 45 W

Diameter (connector)

4.5 mm x 2.9 mm

Input voltage

100 VAC–240 VAC

Input frequency

50 Hz–60 Hz

Input current (maximum)

1.30 A

Output current (continuous)

2.31 A

Rated output voltage

19.50 VDC

Temperature range:
Operating

0°C to 40°C (32°F to 104°F)

Storage

–40°C to 70°C (–40°F to 158°F)

Battery

Table 1. Battery specifications

The following table provides the detailed battery specifications of Inspiron 3785.

DescriptionValues
Type

3-cell "smart" lithium-ion (42 WHr)

Voltage

11.40 VDC

Weight (maximum)

0.20 kg (0.44 lb)

Dimensions:
Height

5.90 mm (0.23 in.)

Width

184.15 mm (7.25 in.)

Depth

90.73 mm (3.57 in.)

Temperature range:
Operating

0°C to 35°C (32°F to 95°F)

Storage

–40°C to 65°C (–40°F to 149°F)

Operating timeVaries depending on operating conditions and can significantly reduce under certain power-intensive conditions.
Charging time (approximate)
4 hours (when the computer is off)
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 https://www.dell.com/.
Life span (approximate)300 discharge/charge cycles
Coin-cell battery

CR-2032

Operating timeVaries depending on operating conditions and can significantly reduce under certain power-intensive conditions.

Display

Table 1. Display specifications

The following table provides the detailed display specifications of Inspiron 3785.

DescriptionValues
Type

High Definition Plus (HD+)

Full High Definition (FHD)

Panel technology

Twisted Nematic (TN)

Wide Viewing Angle (WVA)

Luminance (typical)

220 nits

300 nits

Dimensions (Active area):
Height

214.92 mm (8.46 in.)

214.81 mm (8.46 in.)

Width

382.08 mm (15.04 in.)

381.89 mm (15.04 in.)

Diagonal

438.38 mm (17.26 in.)

438.16 mm (17.25 in.)

Native resolution

1600 x 900 (HD+)

1920 x 1080 (FHD)

Megapixels

1.44

2.07

Pixels per inch (PPI)

106

127

Contrast ratio (min)

400:1

500:1

Response time (max)

16 ms

35 ms

Refresh rate

60 Hz

60 Hz

Horizontal view angle
  • Left: 40 degrees
  • Right: 40 degrees
  • Left: 80 degrees
  • Right: 80 degrees
Vertical view angle
  • Top: 10 degrees
  • Bottom: 30 degrees
  • Top: 80 degrees
  • Bottom: 80 degrees
Pixel pitch

0.2388 mm

0.1989 mm

Power consumption (maximum)

4.4 W

8 W

Anti-glare vs glossy finish

Anti-glare

Anti-glare

Touch options

Not supported

Not supported

Fingerprint reader (optional)

Table 1. Fingerprint reader specifications

The following table provides the specifications of fingerprint reader of Inspiron 3785.

DescriptionValues
Sensor technology

Capacitive

Sensor resolution

500 PPI

Sensor area

5.50 mm x 4.50 mm (0.22 in. x 0.17 in.)

Sensor pixel size

108 pixels x 88 pixels

Video

Table 1. Video specificationsThe following table provides the discrete graphics specifications of your computer.
Discrete graphics
ControllerExternal display supportMemory sizeMemory Type

Not supported

Not supported

Not supported

Not supported

Table 2. Video specificationsThe following table provides the integrated graphics specifications of your computer.
Integrated graphics
ControllerExternal display supportMemory sizeProcessor

Radeon Vega 6

One HDMI 1.4b port

Shared system memory

AMD Ryzen 3 2300U

Radeon Vega 8

One HDMI 1.4b port

Shared system memory

AMD Ryzen 5 2500U

Computer environment

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 for your system.

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)

10% to 90% (non-condensing)

0% to 95% (non-condensing)

Vibration (maximum)*

0.66 GRMS

1.30 GRMS

Shock (maximum)

140 G†

160 G‡

Altitude (maximum)

0 m to 3,048 m (0 ft to 10,000 ft)

0 m to 10,668 m (0 ft to 35,000 ft)

* Measured using a random vibration spectrum that simulates user environment.

† Measured using a 2 ms half-sine pulse when the hard drive is in use.

‡ Measured using a 2 ms half-sine pulse when the hard-drive head is in parked position.