Cube K8
The Cube K8 is a tablet which is commercially available for $89 (plus $30 S&H).
Contents
Overview
The Cube K8 provides 512MB of memory and 4GB of eMMC storage
Display
The display size is 7" diagonal w. 16:9 aspect ratio. The resolution is 800 x 480. A capacitive touchscreen is integrated.
There is one internal speaker and an internal mono microphone.
Connectivity
The Cube K8 has 802.11b/g WiFi using an antenna on the motherboard.
Location/Movement
The Cube K8 has an accelerometer.
Ports
- One mini USB
- One full-size type A USB
- One microSD card, externally accessible
- One DC input port
- One stereo Headphone Jack (3.5mm)
There is one button on the front panel, and three (power, ESC, and M) along one side.
Power
The Cube K8 has a 11Wh Li-Ion polymer battery (3.7V @ 3000mAh).
There are two wires to the battery, soldered directly to the main motherboard. The battery is soft-sided.
Breakdown
Height
The tablet thickness is roughly 13.3mm in the middle. The height stackup is:
| Front bezel: 1.7mm | |
| Touchscreen: 1.1mm | |
| Air Gap: 0.6mm | |
| Display: 3.8mm | |
| Motherboard: 4.6mm | Battery: 4.5mm |
| Back plastic: 1.5mm | |
Weight
The tablet weight is roughly 326 grams. This breaks down as:
| Cover Glass/Touchscreen/Display | 156g |
| Motherboard/Speaker: | 40g |
| Battery: | 68g |
| Back cover/Bezel: | 62g |
| Total: | 326g |
BOM
- SoC: Rockchip RK2918
- (2) Elpida 128M x 16 DDR3 EDJ2116DEBG
- (2) Micron 32Gbit NAND Flash 29F32G08CBACA
- TI TPS659102 Power Management IC
- Realtek ALC5621 audio codec
- Realtek RL8188 WiFi module
- Goodix GT801 Capacitive Touchscreen controller (on motherboard)
Another breakdown is at: Slate4Sure, for the K8GT model which includes a camera. It is the same motherboard and case.
