Rockchip® ARM Cortex A53 RK3328, 1 * Micro SD Card Socket, HDMI/VGA, Bluetooth, WIFI, Android 7.1 Features 1. Rockchip® ARM Cortex A53 RK3328 Quad-core 1.5GHz 2. DRAM : 2GB DDR3L 1333MHz on-board (Max. to 4GB) 3. FLASH ROM : 8GB (Max. to 32GB) 4. Support 1 * Micro SD Card Socket(Max 64G) 5. 2 * RJ45, 3 * USB3.0, 5 * USB2.0, 1 * OTG, 1 * Micro SD Card socket, 1 * RS232 (Full pin), 1 * UART 6. 1 * HDMI (3840 x 2160@60Hz) 7. Support Android 7.1, Linux 4.4 8. uTX Form Factor (130mm * 120mm)  Certification