Dimensions and weight
| Height | 22.10 mm (0.87 in) |
| Width | 412.50 mm (16.24 in) |
| Depth | 277.50 mm (10.92 in) |
| Weight | 2.94 kg (6.49 lb) |
|
System information
| Computer model | Inspiron 17-7778 |
| Processor |
|
| Chipset | Integrated in processor |
Memory
| Slots | Two SODIMM slots |
| Type | Dual-channel DDR4 |
| Speed | 2133 MHz |
| Configurations supported | 4 GB, 8 GB, 12 GB, and 16 GB |
Ports and connectors
| External: | |
|---|---|
| USB |
|
| Audio/Video |
|
| Internal: | |
|---|---|
| M.2 Card | One M.2 slot for SSD card |
Communications
| Wireless |
|
Video
| Integrated | Discrete | |
|---|---|---|
| Controller | Intel HD Graphics 520 | NVIDIA GeForce 940M |
| Memory | Shared system memory |
|
Audio
| Controller | Realtek ALC3234CG with Waves MaxxAudio Pro |
| Speakers | Two |
| Output |
|
| Microphone | Digital-array microphones in camera assembly |
| Volume controls | Media-control shortcut keys and volume-control buttons |
Storage
| Interface | SATA 6 Gbps |
| Solid-state drive |
|
| Hard drive | One 2.5-inch drive |
Keyboard
| Type | Backlit keyboard |
| 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.
Keyboard Shortcuts |
Camera
| Resolution |
|
| Diagonal viewing angle | 74 degrees |
Touch pad
| Resolution |
|
| Dimensions |
|
Power adapter
| Type | 65 W |
| 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) |
| Temperature range: Storage | –40°C to 70°C (–40°F to 158°F) |
Display
| Type | 17.3-inch FHD touch screen |
| Resolution (maximum) | 1920 x 1080 |
| Pixel pitch | 0.1989 mm |
| Refresh rate | 60 Hz |
| Operating angle | 0 degrees (closed) to 360 degrees |
| Controls | Brightness can be controlled using shortcut keys |
| Height | 252.50 mm (9.94 in) |
| Width | 400 mm (15.75 in) |
| Diagonal | 439.42 mm (17.30 in) |
Battery
| Type |
|
|
| Operating time | Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions. | |
| Life span (approximate) | 300 discharge/charge cycles | |
| Temperature range: Operating | 0°C to 35°C (32°F to 95°F) | |
| Temperature range: Storage | –40°C to 65°C (–40°F to 149°F) | |
| Coin-cell battery | CR-2032 | |
| 3 cell | 4 cell | |
| Weight (maximum) | 0.20 kg (0.44 lb) | 0.25 kg (0.55 lb) |
| Voltage | 11.40 VDC | 15.20 VDC |
| Width | 97.15 mm (3.82 in) | 98.20 mm (3.87 in) |
| Depth | 184.15 mm (7.25 in) | 233.37 mm (9.19 in) |
| Height | 5.90 mm (0.23 in) | 5.90 mm (0.23 in) |
Computer environment
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
| 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 (maximum) | –15.20 m to 3048 m (–50 ft to 10,000 ft) | –15.20 m to 10,668 m (–50 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.




























