hardware spec:

CPU

Model: Rockchip RK3399

Number of Cores: 64-bit Dual Core Cortex-A72 + Quad Core Cortex-A53

Frequency: Cortex-A72(up to 2.0GHz), Cortex-A53(up to 1.5GHz)

GPU

Mali-T864 GPU，supports OpenGL® ES1.1/2.0/3.0/3.1, OpenCL™, DX11, and AFBC

VPU

4K VP9 and 4K 10bits H265/H264 60fps decoding, Dual VOP, etc

Memory

Dual-Channel 2GB DDR3-1866

Storage

eMMC: no Onboard eMMC, but has a eMMC socket

MicroSD Slot: MicroSD*1 for external storage up to 128GB

Connectivity

Ethernet: Native Gbps Ethernet

WiFi: 802.11a/b/g/n/ac, Bluetooth 4.1, Wi-Fi and Bluetooth combo module, dual antenna interface

Antenna*2: IPX Connector

Audio

Audio Output: 3.5mm Dual channel headphone jack, or HDMI

Audio Input: Microphone input interface*1

Video Input

one or two 4-Lane MIPI-CSI, dual ISP, up to 13MPix/s，supports simultaneous input of dual camera data

Video Output

HDMI*1: HDMI 2.0a, supports 4K@60Hz，HDCP 1.4/2.2

4-Lane MIPI-DSI*1

USB

USB 3.0*4: USB 3.0 Type-A ports

USB Type-C*1: Supports USB2.0 OTG and Power input

USB Host*2 (included in GPIO2 2.54mm pitch pin header)

Pin-header

GPIO1: 40pin, 2.54mm pitch pin-header

3*3V/1.8V I2C, up to 1*3V UART, 1*3V SPI, 1*SPDIF_TX, up to 8*3V GPIOs, 1*1.8V 8 channels I2S

GPIO2: 24pin, 2.54mm pitch pin-header

2 independent native USB 2.0 Host interfaces, PCIe x2, PWM*1, PowerKey

Serial Debug Port: 2.54mm pitch 4-pin-header, 3V level, 1500000bps

LED

Power LED(Red)*1

GPIO Controlled LED(Green)*1

Others

RTC: 2 Pin 1.27/1.25mm RTC battery input connector

Working Temperature: -20℃ to 70℃

Power

DC 5V/3A

os/software

OS Support:

• Android 8.1
• Android 10
• Lubuntu 16.04 (32-bit)
• FriendlyCore 18.04 (64-bit)
• FriendlyDesktop 18.04 (64-bit)
• FriendlyWrt 19.07.1 (64-bit)

Kernel version:

• Linux-4.4-LTS
• U-boot-2014.10

Dimension:

• PCB: 8 Layer
• Dimension: 85*56mm
• Weight: 47.70g

[ źródło: https://www.friendlyarm.com/index.php?route=product/product&product_id=234 ]