The "RK322X" refers to a family of System-on-Chips (SoCs) by Rockchip. This includes the RK3228A, RK3228B, and RK3229. These are quad-core Cortex-A7 chips designed specifically for low-power, low-cost set-top boxes.
: Usually ships with 1GB to 2GB of RAM and 8GB to 16GB of eMMC storage. Connectivity android rk322x-box rk322x-box 7.1.2 nhg47k