Androidsbc - China source manufacturer for RK3588 RS485 for Modbus communication. Featured model ASB-RK3588-ALL (All-in-One Interface Board): Rockchip RK3588, 8nm, 4x Cortex-A76 @2.4GHz + 4x Cortex-A55 @1.8GHz; 128GB eMMC 5.1 + 4x SATA 3.0 6Gbps; HDMI 2.1 8K + 2x HDMI 2.0 + LVDS + eDP + V-By-One (up to 8 screens); 8x COM (RS232/RS485/TTL) + 2x CAN FD + GPIO/···