3399FR is an Android mainboard based on RK3399（Quad-core 64bit）, with rich peripheral functions, highly integrated interfaces, and support for multi-display output, applicable to cash registers, face recognition, access control, visual intercom, advertising machines, TV boxes, video surveillance, lockers, etc.
| Item | Spec |
| CPU | Rk3399 ARM Cortex-A72+Cortex-A53，2.0GHz |
| GPU | ARM Mail-T864,support AFBC,Directx11 |
| Memory | DDR3 2G(4G Optional) |
| Flash Memory | EMMC 8G(16G/32G/64G Optional) |
| Decode | 4K VP9,H.265,H.264 1080P 60fps |
| Graphics | 1*HDMI2.0；1*LVDS；1*MIPI 40pinFPC；1*EDP |
| Ethernet | 1*RJ45，100M/1000M |
| wifi | 2.4G/5G-WIFI（BT-4.1） |
| PCIE | Mini_pcie |
| Memory Card | TF Card/USB |
| USB | 4*USB2.0_HOST，3*USB3.0_HOST |
| COM | 4*COM，2*RS232, 2*TTL |
| Extension PORT | 6*IO,1*IIC(support TP),1*MIC，1*Aux，1*SIM Card, |
| Work Voltage | 12V |
| OS | Android7.1 |
| System Support | Support timer on/off, support USB/network upgrade, support modify boot animation, boot LOGO; support face recognition API call. Comes with hardware watchdog. |
| Size | 145.2*104*15.2mm |
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