1. ROCK3 is an SBC (Single Board Computer) series based on Rockchip RK3568. You can use android or some Linux distributions.     2. ROCK3 is equipped with ARM Cortex-A55 quad-core processor, 32-bit 3200Mb/s LPDDR4, up to 4K@60 HDMI-compatible, MIPI DSI, MIPI UC, 3.5mm jack with microphone, USB port, GbE LAN, PCIe 3.0 , PCIe 2.0, 40-pin color expansion header, RTC.     3. ROCK3 supports USB PD and QC          Product name: ROCK3 Model A     Processor: Rockchip RK3568 quad-core Cortex-A55 (64-bit SoC@2.0GHz)     GPU: ARM G52 2EE     NPU: 0.8TOPS computing power     Multimedia: 4K 60fps H.265/H.264/VP9 video decoding; 1080P 60fps H.265/H.264 video encoding     Memory: 2GB LPDDR4-3200 SDRAM memory     Flash memory: eMMC (with 16GB, 32GB, 64GB, 128GB flash memory, no flash memory); μSD card (μD card slot, supports up to 128GB μSD card); M.2 SSD     Network: with Wireless module A1 module (included), support 2.4G WIFI and 4.2 Bluetooth, support Gigabit Ethernet     USB: USB2.0 interface x 2; USB3.0 x 1; USB3.0 TOG x 1 (Switchable Host/Device mode)     I/O: 40-PIN header; 5*UART; 1*SPI; 2*I2C; 6*PWM; 1*ADC; 1*CAN; 6*GPIO;     Video: HDMI-compatible interface (support 4K*2K @60); 2-lane MIPI DSI display interface; 2-lane MIPI CSI camera interface;     Audio: 3.5mm headphone jack; HD encoding, up to 14-bit/96KHz audio     Others: RTC; RTC backup power interface     Voltage: PD fast charging source Type C PD2.0, 9V/2A, 12V/2A, 15V/2A, 20V/2A; Qualcomm QC fast charging source: support QC3.0/2.0 power supply, 9V/2A, 12V/1.5A ;DC power supply: 5~21V     Dimensions: 85 x 56mm     Material: PCB+Metal     colour: green          Package Contents:     1 x ROCK3 Model A card     1 x WiFi module          Only the above package content, other products are not included.     Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.