Q40a adopts Quanzhi a40 I -a7 quad core CPU, equipped with android7.1 system, with a main frequency of 1.5GHz. GPU adopts mail 400 MP2 first-class video and picture processing function, with outstanding performance and ultra-high cost performance LCD display with LVDS, EDP, and other interfaces is supported. The factory default LVDS output is 1920 x 1080p Dual 8, and dual screen simultaneous display or differential display is supported It is suitable for high-definition network playback box, video advertising machine and digital photo frame advertising machine Mall , smart terminal, cash register, self-service dispenser of bag, tablet or learning machine, artificial intelligence and express storage cabinet What you want, we have Android 7.1, rich interfaces, support extended RS232 or RS485, HD display, 5g dual band WiFi, quad core processor and 3G or 4G module CPU: Allwinner A40i, super quad-core, clocked at 1.5GHz Memory: Standard configuration: 1GB Storage: EMMC standard configuration 8cB Decoding resolution: up to 1080P : Android7.1 Play mode: support multiple play modes such as looping, timing, and insertion Network support: Ethernet, support WIFI (Bluetooth optional), wireless peripheral expansion Video playback: support wMv, , , rm, rmvb, mpeg, , Mp4, etc. Picture format: support BMP, JPEG, FNG, GIF USB2.0 interface: 2 standard USBHOST interfaces (one set of optional otg) USB sockets Serial port: Basic version: 4 TTL3.3V serial ports Industrial version Q40A-Pro: 2 3.3VR232 serial ports, 2 TTL3.3V serial ports Ethernet: 1, 10M or 100M adaptive Ethernet TF card: TF card, maximum support 32B Colour:As shown Material:PCB Size:14 x 12 x 8CM Package Contents: 1 x Motherboard Only the above package content, other products are not included. Note: Light and erent 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.