Rockchip RK3028 is a low cost dual core Cortex A9 processor pin-to-pin compatible with RK2928 single core Cortex A9, I first heard about at Hong Kong Electronics Fair 2013. It’s now found in a few kids tablets, as well as GK328, an Android 4.2 HDMI TV dongle, that sells for about $37, or a few dollars cheaper than similar AllWinner A20 or Rockchip RK3066 based devices.
- SoC – Rockchip RK3028 dual core Cortex A9 @ 1.0 GHz with Mali-400 GPU
- System Memory – 512MB RAM
- Storage – 4GB NAND flash + microSD card slot
- Video & Audio Output – HDMI
- Connectivity – 802.11b/g/n Wi-Fi
- USB – 1x USB HOST 2.0, 1x micro USB OTG, 1x micro USB for power
- Misc – Fn button (for recovery?)
- Power – 5V/1A via micro USB port
The device runs Android 4.2 and sells with a power adapter, a USB cable, an HDMI cable, and a user’s manual. This must be one of the cheapest, if not the cheapest dual core Cortex A9 mini PC, but I’m not so sure many will be interested, as for about $5 more, you can get MK808 with Rockchip RK3066 with better performance, 1GB RAM, and 8GB Flash, as well as decent community support. One advantage is that RK3028 is apparently more power efficiency, and works with a 5V/1A powered adapter, whereas MK808 requires a 5V/2A power adapter to run reliably.