The S905L2 is built on a 28nm HKMG process and features a quad-core ARM Cortex-A53 architecture. It is designed to balance power efficiency with the demands of 4K media playback. Specification Quad-core ARM Cortex-A53 up to 2.0 GHz (varies by model) GPU Penta-core ARM Mali-450 MP5 @ 750 MHz Video Decoding 4K@60fps H.265/HEVC, H.264, HDR support Memory Support DDR3/4, LPDDR2/3 up to 4GB Connectivity 10/100M Ethernet, USB 2.0, HDMI 2.0 2. Firmware Ecosystem in 2021

– Unplug the power. Do NOT connect the USB yet.