Rock Pi S is a development board designed by the Radxa team based on the RK3308 chip. Equipped with a 64-bit 4-core processor, DDR3 RAM from 256MB to 512MB, this 1.7-inch small board also has USB, network ports, and can choose different models with Bluetooth/wireless modules to meet different project needs.

I do build custom OS images for Rock Pi S boards, all OS images are available here. You can request custom OS images as well as Berryboot Custom OS Images.

More information about one of the best custom OS images for Rock Pi S based on Armbian can be found on my personal blog.