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 / 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 / learning machine, artificial intelligence and express storage cabinet What you want, we have Android 7.1, rich interfaces, support extended RS232 / RS485, HD display, 5g dual band WiFi, quad core processor and 3G / 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/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.