ROCK 3 Model A 2GBA robust single board computer with class leading performance, the OKdo ROCK 3 Model A (ROCK 3A) is based on the trusted Rockchip RK3568 SoC and has a small form size. There are several characteristics in the ROCK 3A. A quad core Armv8. 2A Cortex A55 CPU, an Arm MaliTM G52 GPU, an HDMI 2. 0 interface supporting displays up to 4K@60pfs resolution, many networking and storage options, and compatibility with a broad choice of software operating systems