Dell Inspiron 17 3781 is a good laptop of 17 3000 series capable of performing heavy computing as its integrated with Intel 7th Generation processor and SODIMM slots Dualchannel DDR4 RAM with speed Up to 2133 MHz, and depending on the configuration you choose from its customization, the things you can do range from a simple worksheet task or some development tasks.
It has a punchy and bright High Definition Plus (HD+) IPS display for a budget laptop. You can surely enjoy movies and other forms of entertainment on its 17.3 inches bigger screen. Price starting from $500 and goes up as laptop is more customized for higher specs

Dell Inspiron 17 3781 – Lid Closed Side views

Dell Inspiron 17 3781 -Bottom

Dell Inspiron 17 3781 Laptop

Dell Inspiron 17 3781 – Keyboard Top View
Dell Inspiron 3781 Technical Specifications:
Laptop Info
Laptop About
| Brand |
Dell |
| Series |
Dell Inspiron 3000 |
| Model |
Dell Inspiron 17 3781 |
| Price |
Starts from $500 |
| Color |
Black, Silver |
| Release Date |
November 2020 |
Processor Specifications
Processors
| Intel Celeron Processor |
- Processors: Intel Celeron Processor
- Wattage: 15 W
- Core count: 2
- Thread count: 4
- Speed: Up to 1.8 GHz
- L2 Cache: 512 KB
- L3 Cache: 2 MB
- Integrated graphics: Intel HD Graphics 610
|
| Intel Pentium Gold |
- Processors: Intel Pentium Gold
- Wattage: 15 W
- Core count: 4
- Thread count: 8
- Speed: Up to 2.2 GHz
- L2 Cache: 512 KB
- L3 Cache: 2 MB
- Integrated graphics: Intel HD Graphics 610
|
| 7th Generation Intel Core i3 |
- Processors: 7th Generation Intel Core i3
- Wattage: 15 W
- Core count: 2
- Thread count: 4
- Speed: Up to 2.3 GHz
- L2 Cache: 512 KB
- L3 Cache: 3 MB
- Integrated graphics: Intel HD Graphics 620
|
| 7th Generation Intel Core i5 |
- Processors: 7th Generation Intel Core i5
- Wattage: 15 W
- Core count: 2
- Thread count: 4
- Speed: Up to 3.1 GHz
- L2 Cache: 512 KB
- L3 Cache: 3 MB
- Integrated graphics: Intel HD Graphics 620
|
| 7th Generation Intel Core i7 |
- Processors: 7th Generation Intel Core i7
- Wattage: 15 W
- Core count: 2
- Thread count: 4
- Speed: Up to 3.5 GHz
- L2 Cache: 512 KB
- L3 Cache: 4 MB
- Integrated graphics: Intel HD Graphics 620
|
Operating System
Operating System
| Operating System |
- Windows 10 Home (64-bit)
- Windows 10 Professional (64-bit)
- Ubuntu
|
Chipset
Chipset
| Intel Celeron ProcessorIntel Pentium Gold |
- Processor
- Intel Celeron Processor
- Intel Pentium Gold
- Chipset: Integrated in the processor
- DRAM bus width: 64-bit
- Flash EPROM: 16 MB
- PCIe bus: Up to Gen2.0
- External bus frequency: 4 GT/s
|
| 7th Generation Intel Core i3/i5/i7 |
- Processor: 7th Generation Intel Core i3/i5/i7
- Chipset: Integrated in the processor
- DRAM bus width: 64-bit
- Flash EPROM: 16 MB
- PCIe bus: Up to Gen3.0
- External bus frequency: 4 GT/s
|
Memory (RAM)
Memory specifications
| Slots |
Two SODIMM slots
|
| Type |
Dual-channel DDR4
|
| Speed |
Up to 2133 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 2133 MHz (1 x 4 GB)
- 8 GB DDR4 at 2133 MHz (2 x 4 GB)
- 8 GB DDR4 at 2133 MHz (1 x 8 GB)
- 12 GB DDR4 at 2133 MHz (1 x 8 GB + 1 x 4 GB)
- 16 GB DDR4 at 2133 MHz (2 x 8 GB)
- 16 GB DDR4 at 2133 MHz (1 x 16 GB)
|
Storage
Storage specifications
| 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 for 7th Generation Intel Core i3/i5/i7 processors
- PCIe Gen2.0x4, up to 16 Gbps for Intel Celeron and Pentium Gold processors
, Up to 256 GB
|
| Optical drive |
9.5 mm DVD-RW, One slimline DVD-RW |
Dimensions and Weight
Dimensions and weight
| Height: |
| Front |
21.86 mm (0.86 in.)
|
| Rear |
25.60 mm (1.01 in.)
|
| Width |
415.40 mm (16.35 in.)
|
| Depth |
279.20 mm (10.99 in.)
|
| Weight |
3.03 kg (6.68 lb)
|
Display (Screen)
Display specifications
| High Definition Plus (HD+) |
- Type: High Definition Plus (HD+)
- Panel technology: Twisted Nematic (TN)
- Luminance (typical): 220 nits
- Dimensions (Active area):
- Height: 214.92 mm (8.46 in.)
- Width: 382.08 mm (15.04 in.)
- Diagonal: 438.38 mm (17.26 in.)
- Native resolution: 1600 x 900 (HD+)
- Megapixels: 1.44
- Pixels per inch (PPI): 106
- Contrast ratio (min): 400:1
- Response time (max): 16 ms
- Refresh rate: 60 Hz
- Horizontal view angle
- Left: 40 degrees
- Right: 40 degrees
- Vertical view angle
- Top: 10 degrees
- Bottom: 30 degrees
- Pixel pitch: 0.2388 mm
- Power consumption (maximum): 4.4 W
- Anti-glare vs glossy finish: Anti-glare
- Touch options: Not supported
|
| Full High Definition (FHD) |
- Type: Full High Definition (FHD)
- Panel technology: Wide Viewing Angle (WVA)
- Luminance (typical): 300 nits
- Dimensions (Active area):
- Height: 214.81 mm (8.46 in.)
- Width: 381.89 mm (15.04 in.)
- Diagonal: 438.16 mm (17.25 in.)
- Native resolution: 1920 x 1080 (FHD)
- Megapixels: 2.07
- Pixels per inch (PPI): 127
- Contrast ratio (min): 500:1
- Response time (max): 35 ms
- Refresh rate: 60 Hz
- Horizontal view angle
- Left: 80 degrees
- Right: 80 degrees
- Vertical view angle
- Top: 80 degrees
- Bottom: 80 degrees
- Pixel pitch: 0.1989 mm
- Power consumption (maximum): 8 W
- Anti-glare vs glossy finish: Anti-glare
- Touch options: Not supported
|
Video | Graphics (Discrete graphics)
Video specifications
| AMD Radeon 520 |
One HDMI 1.4b port, 2 GB, GDDR5 |
Video | Graphics (Integrated graphics)
Video specifications
| Intel HD Graphics 610 |
One HDMI 1.4b port, Shared system memory
- Intel Celeron processor
- Intel Pentium Gold
|
| Intel HD Graphics 620 |
One HDMI 1.4b port, Shared system memory, 7th Generation Intel Core i3/i5/i7 |
Battery Specifications
Battery specifications
| 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 time |
Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions. |
| Charging time (approximate) |
4 hours (when the computer is off)
|
| Life span (approximate) |
300 discharge/charge cycles |
| Coin-cell battery |
CR-2032
|
| Operating time |
Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions. |
Camera (Web Cam) Specifications
Camera specifications
| 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
|
Audio Specifications
Audio specifications
| Controller |
Realtek ALC3246
|
| 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
|
Media-card Reader
Media-card reader specifications
| Type |
One SD-card slot
|
| Cards supported |
- Secure Digital (SD)
- Secure Digital High Capacity(SDHC)
- Secure Digital Extended Capacity(SDXC)
|
Ports and connectors
Ports and connectors
| 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 or Intel Optane
|
Communication Wired module
Ethernet specifications
| Model number |
Ethernet controller integrated to the system board
|
| Transfer rate |
10/100 Mbps
|
Communication wireless module
Wireless module specifications
| Qualcomm QCA9565 (DW1707) |
- Model number: Qualcomm QCA9565 (DW1707)
- Transfer rate: Up to 150 Mbps
- Frequency bands supported: Dual band 2.4 GHz
- Wireless standards: WiFi 802.11b/g/n
- Encryption
- 64-bit/128-bit WEP
- AES-CCMP
- TKIP
- Bluetooth: Bluetooth 4.0
|
| Qualcomm QCA9377 (DW1810) |
- Model number: Qualcomm QCA9377 (DW1810)
- Transfer rate: Up to 433 Mbps
- Frequency bands supported: Dual band 2.4 GHz/5 GHz
- Wireless standards: WiFi 802.11a/b/g/n/ac
- Encryption
- 64-bit/128-bit WEP
- AES-CCMP
- TKIP
- Bluetooth: Bluetooth 4.2
|
| Qualcomm QCA61x4A (DW1820) |
- Model number: Qualcomm QCA61x4A (DW1820)
- Transfer rate: Up to 867 Mbps
- Frequency bands supported: Dual band 2.4 GHz/5 GHz
- Wireless standards: WiFi 802.11a/b/g/n/ac
- Encryption
- 64-bit/128-bit WEP
- AES-CCMP
- TKIP
- Bluetooth: Bluetooth 4.2
|
keyboard
Keyboard specifications
| 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.
|
TouchPad
Touchpad specifications
| Resolution: |
| Horizontal |
3215
|
| Vertical |
2429
|
| Dimensions: |
| Horizontal |
105 mm (4.13 in.)
|
| Vertical |
80 mm (3.15 in.)
|
Fingerprint Reader
Fingerprint reader specifications
| 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
|
Charger | Power Adapter
Power adapter specifications
| E4 45 W |
- 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)
|
| E4 65 W |
- Type: E4 65 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): 1.60 A/1.70 A
- Output current (continuous): 3.34 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)
|
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