Dimensions and weight
The following table lists the height, width, depth, and weight of your Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Height: | ||
| Front height |
0.68 in. (17.52 mm) |
|
| Rear height |
0.72 in. (18.48 mm) |
|
| Width |
12.74 in. (323.67 mm) |
|
| Depth |
8.65 in. (219.76 mm) |
|
| Weight
NOTE: The weight of your computer depends on the configuration ordered and manufacturing variability.
|
|
|
Processor
The following table lists the details of the processors supported by your Inspiron 14 3420.
| Description | Values |
|---|---|
| Processor type |
Qualcomm Snapdragon SC8180XP |
| Processor wattage |
9 W |
| Processor core count |
8 |
| Processor thread count |
8 |
| Processor speed |
Up to 3.15 GHz |
| Processor cache |
4 MB |
| Integrated graphics |
Adreno 690 |
Chipset
The following table lists the details of the chipset supported by your Inspiron 14 3420.
| Description | Values |
|---|---|
| Chipset |
Integrated in the processor |
| Processor |
Qualcomm Snapdragon SC8180XP |
| DRAM bus width |
64-bit |
| Flash EPROM |
32 MB |
| PCIe bus |
Up to Gen 3 |
Operating system
Your Inspiron 14 3420 supports the following operating systems:
- Windows 11 Pro Standard, 64 bit
- Windows 11 Home Standard, 64 bit
- Windows 11 Home Standard S-mode, 64 bit
Memory
The following table lists the memory specifications of your Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Memory slots |
None, onboard |
|
| Memory type |
LPDDR4x |
|
| Memory speed |
2133 MHz |
|
| Maximum memory configuration |
16 GB |
|
| Minimum memory configuration |
8 GB |
|
| Memory configurations supported |
|
|
External ports
The following table lists the external ports on your Inspiron 14 3420.
| Description | Values |
|---|---|
| USB ports |
|
| Audio port |
One headset (headphone and microphone combo) port |
| Video port/ports |
Not supported |
| Media-card reader |
One micro-SD card slot |
| Power-adapter port |
One USB 3.2 Gen 2 Type-C port with Power Delivery |
| Security-cable slot |
Not supported |
Internal slots
The following table lists the internal slots of your Inspiron 14 3420.
| Description | Values |
|---|---|
| M.2 |
One M.2 2230/2280 slot for solid-state drive NOTE: To learn more about the features of different types of M.2 cards, search in the Knowledge Base Resource at
www.dell.com/support.
|
Wireless module
The following table lists the Wireless Local Area Network (WLAN) module supported on your Inspiron 14 3420.
| Description | Values |
|---|---|
| Model number |
Qualcomm QCA6390 |
| Transfer rate |
Up to 1200 Mbps |
| Frequency bands supported |
2.4 GHz/5 GHz |
| Wireless standards |
|
| Encryption |
|
| Bluetooth |
Bluetooth 5.2 |
Audio
The following table lists the audio specifications of your Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Audio controller |
Qualcomm |
|
| Stereo conversion |
Supported |
|
| Internal audio interface |
High definition audio |
|
| External audio interface |
One headset (headphone and microphone combo) port |
|
| Number of speakers |
Two |
|
| Internal-speaker amplifier |
Supported |
|
| External volume controls |
Keyboard shortcut controls |
|
| Speaker output: | ||
| Average speaker output |
2 W |
|
| Peak speaker output |
2.5 W |
|
| Subwoofer output |
Not supported |
|
| Microphone |
Two |
|
Storage
This section lists the storage options on your Inspiron 14 3420.
- One M.2 2230 solid-state drive
or
- One M.2 2280 solid-state drive
or
- One M.2 2280 solid-state drive, Quad-Level Cell (QLC)
| Storage type | Interface type | Capacity |
|---|---|---|
|
One M.2 2230 solid-state drive |
PCIe NVMe 3x4 |
Up to 1 TB |
|
One M.2 2230 solid-state drive |
PCIe NVMe 4x4 |
Up to 1 TB |
|
One M.2 2280 solid-state drive |
PCIe NVMe 4x4 |
Up to 2 TB |
|
One M.2 2280 solid-state drive |
PCIe NVMe 3x4, QLC |
Up to 1 TB |
Media-card reader
The following table lists the media cards supported by your Inspiron 14 3420.
| Description | Values |
|---|---|
| Media-card type |
One micro-SD card slot |
| Media-cards supported |
|
|
NOTE: The maximum capacity supported by the media-card reader varies depending on the standard of the media card installed in your computer.
|
|
Keyboard
The following table lists the keyboard specifications of your Inspiron 14 3420.
| Description | Values |
|---|---|
| Keyboard type |
|
| Keyboard layout |
QWERTY |
| Number of keys |
|
| Keyboard size |
X= 19.05 mm key pitch mm key pitch Y= 18.05 mm key pitch 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 BIOS setup program.
|
Camera
The following table lists the camera specifications of your Inspiron 14 3420.
| Description | Values | ||
|---|---|---|---|
| Number of cameras |
One |
||
| Camera type |
FHD RGB camera |
||
| 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 |
||
| Diagonal viewing angle: |
82 degrees |
||
Touchpad
The following table lists the touchpad specifications of your Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Touchpad resolution: |
>300 dpi |
|
| Touchpad dimensions: | ||
| Horizontal |
115 mm (4.53 in.) |
|
| Vertical |
70 mm (2.76 in.) |
|
| Touchpad gestures | For more information about touchpad gestures available on Windows, see the Microsoft knowledge base article at support.microsoft.com. | |
Power adapter
The following table lists the power adapter specifications of your Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Type |
Pecos 65 W USB-C |
|
| Input voltage |
100 VAC-240 VAC |
|
| Input frequency |
50 Hz–60 Hz |
|
| Input current (maximum) |
1.7 A |
|
| Output current (continuous) |
3 A |
|
| Rated output voltage |
15 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) |
|
|
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 Inspiron 14 3420.
| Description | Values | |
|---|---|---|
| Battery type |
2-Cell, 40 Wh, Polymer |
|
| Battery voltage |
7.60 VDC |
|
| Battery weight (maximum) |
0.16 kg (0.35 lb) |
|
| Battery dimensions: | ||
| Height |
250.2 mm (9.85 in.) |
|
| Width |
81.8 mm (3.22 in.) |
|
| Depth |
3.7 mm (0.15 in.) |
|
| Temperature range: | ||
| Operating |
0 °C to 50 °C (32°F to 122°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: 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
www.dell.com.
|
When the computer is turned 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/
|
|
| Coin-cell battery |
None |
|
|
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 recommends that you charge the battery regularly for optimal power consumption. If your battery charge is completely 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 Inspiron 14 3420.
| Description | Option one | Option two | |
|---|---|---|---|
| Display type |
14-inch Full High Definition (FHD) |
14-inch Full High Definition (FHD) |
|
| Touch options |
No |
Yes |
|
| Display-panel technology |
Wide-Viewing Angle (WVA) |
In-Plane Switching (IPS) |
|
| Display-panel dimensions (active area): | |||
| Height |
174.02 mm (6.85 in.) |
174.02 mm (6.85 in.) |
|
| Width |
309.37 mm (12.18 in.) |
309.37 mm (12.18 in.) |
|
| Diagonal |
355.60 mm (14 in.) |
355.60 mm (14 in.) |
|
| Display-panel native resolution |
1920 x 1080 |
1920 x 1080 |
|
| Luminance (typical) |
250 nits |
300 nits |
|
| Megapixels |
2.07 |
2.07 |
|
| Color gamut |
45% NTSC, typical |
72% NTSC, typical |
|
| Pixels Per Inch (PPI) |
158 |
158 |
|
| Contrast ratio (min.) |
600:1 |
600:1 |
|
| Response time (max.) |
35 ms |
35 ms |
|
| Refresh rate |
60 Hz |
60 Hz |
|
| Horizontal view angle |
+/- 85 degrees |
+/- 85 degrees |
|
| Vertical view angle |
+/- 85 degrees |
+/- 85 degrees |
|
| Pixel pitch |
0.161 mm |
0.161 mm |
|
| Power consumption (maximum) |
3.10 W |
4.60 W |
|
| Anti-glare vs glossy finish |
Anti-glare |
Anti-glare |
|
GPU—Integrated
The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Inspiron 14 3420.
| Controller | Memory size | Processor |
|---|---|---|
|
Qualcomm Adreno 690 |
Shared system memory |
Qualcomm Snapdragon SC8180XP |
Multiple display support matrix
The following table lists the multiple display support matrix for your Inspiron 14 3420.
| Graphics Card | Direct Graphics Controller Direct Output Mode | Supported external displays with computer internal display on | Supported external displays with computer internal display off |
|---|---|---|---|
| Qualcomm Adreno 690 |
Not applicable |
2 |
2 |
Operating and storage environment
This table lists the operating and storage specifications of your Inspiron 14 3420.
Airborne contaminant level: G1 as defined by ISA-S71.04-1985
| 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 |
1.3 GRMS |
| Shock (maximum) |
110 G† |
160 G† |
| Altitude range |
-15.2 m to 3048 m (4.64 ft to 5518.4 ft) |
-15.2 m to 10668 m (4.64 ft to 19234.4 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 user environment.
† Measured using a 2 ms half-sine pulse.




























