ARM Motherboard R68S installed RK3568 Quad-core Cortex-A55 up to 2.0GHz CPU and ARM Mali-G52 GPU. Memory is 2GB/4GB LPDDR4/4X for optional. Support system Android 11 and Debian 10. Storage is onboard 8GB EMMC (optional 16/32GB). Audio is HD Audio IC, RK809-5. LAN: 1 x 10/100/1000Mbps, RTL8111H. Wireless: Onboard 2.4G WIFI+BT4.2 / 2.4G & 5G WIFI+BT4.2. ARM embedded motherboard has many IO ports to meet your demand: 1 x USB 2.0, 1 x USB 3.0, Internal: 7 USB 2.0, 2 x RS232 Support 5/12V optional (4pin header), 2 x RS232/TTL optional 5V (4 pin header), 2 x RS232/RS485/TTL optional 5V (4 pin header), 1 x M.2 for 4G/5G mobile network module, 1 x TF Slot, 1 x Micro SIM Slot, 1 x TP-I2C (1*6 pin 2.0mm wafer), 2 x GPIO header (1*6 pin 2.0mm wafer) support 7GPIO, 1 ADC, 1 x IR header (1*4 pin 2.0mm wafer), 1 x LED header (1*4 pin 2.0mm wafer), 1 x CAN header (1 x 4 pin 2.0mm wafer), 1 x Cash Box header (1 x 4 pin 2.0mm wafer), 1 x POWER header (1 x 2 pin 2.0mm wafer), 1 x 12V DC IN header (1 x 4 pin 2.54mm wafer). Power is 12V DC input.