




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 |
Power Management | RK808-D PMIC, cooperated with independent DC/DC, enabling DVFS, software power-down, RTC wake-up, system sleep mode |
Memory | RAM: Dual-Channel 4GB LPDDR4 |
Storage | eMMC: no Onboard eMMC, but has a eMMC socket MicroSD Slot: MicroSD x1 for external storage up to 128GB |
Connectivity | internet: Native Gbps Ethernet Wi-Fi/BT: 802.11a/b/g/n/ac, Bluetooth 4.1, Wi-Fi and Bluetooth combo module, 2x2 MIMO, dual antenna interface Antenna x2: IPX Connector |
Audio | Audio Output: 3.5mm Dual channel headphone jack, or HDMI Audio Input: Microphone input interface x1 |
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 x1: HDMI 2.0a, supports 4K@60Hz,HDCP 1.4/2.2 4-Lane MIPI-DSI x1 |
USB | USB 3.0 x4: USB 3.0 Type-A ports USB Type-C x1: Supports USB2.0 OTG and Power input USB Host x2 (included in GPIO2 2.54mm pitch pin header) |
Pin-header | GPIO1: 40pin, 2.54mm pitch pin-header 3x3V/1.8V I2C, up to 1x3V UART, 1x3V SPI, 1xSPDIF_TX, up to 8x3V GPIOs, 1x1.8V 8 channels I2S GPIO2: 24pin, 2.54mm pitch pin-header2 independent native USB 2.0 Host interfaces, PCIe x2, PWM x1, PowerKey Serial Debug Port: 2.54mm pitch 4-pin-header, 3V level, 1500000bps |
User Button | Power Button x1 Recovery Button x1 |
LED | Power LED(Red) x1 GPIO Controlled LED(Green) x1 |
Others | RTC: 2 Pin 1.27/1.25mm RTC battery input connector Working Temperature: -20℃ to 70℃ |
Power | DC 5V/3A |
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) |
BSP version | Linux-4.4-LTS U-boot-2014.10 |
PCB | 8 Layer |
Dimension | 85*56mm |
Weight | 50.62g |
Review by NicoD













We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at alex@friendlyarmtr.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at alex@friendlyarmtr.com.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.