ROCK 3A is basically a little brother of ROCK Pi 4, with some improvements from the experience on ROCK Pi 4.
The main features:
RK3568 based, Quad A55 up to 2GHz, Mali G52 GPU, 0.8T NPU
QC/PD power support, with a new generation QC/PD protocol IC
2x USB2 similar to ROCK Pi 4
GbE with PoE support
M.2 M key for NVMe with PCIe 3.0 x2 lanes
M.2 E key for connectivity with PCIe 2.0 x1/SDIO/UART, supports WiFi 6 cards
1x MIPI DSI, 1x MIPI CSI, compatible with ROCK Pi 4
40Pin GPIO mostly compatible with ROCK Pi 4
Early samples (a few) for developers are ready.
A larger batch will be available in late August.