LCD screen size:          55 inch "(inch)     
LCD brand:          BOE, LG     
Point resolution:          1920(RGB) × 1080(FHD)     
Aspect ratio:          16: 9 (W: H)     
Point spacing (horizontal * vertical)          zero point two one zero × 0.630mm     
Visual area (horizontal * vertical)          one thousand two hundred and eleven point six × 682.2mm     
Brightness:          400 cd/m2 (Typ.)     
Contrast:          5000:1 (Typ.)     
Display color:          1.07B     
Color saturation:          92%     
Response time:          6ms     
Viewing angle:          89 / 89 / 89 / 89 (typ.) (CR ≥ 10) (left / right / up / down)     
Working environment:         - 30- 80 ºC     
Theoretical life:          50000H     
Appearance size (panel)          1261.6*734.4*58.5     
Machine height          1179mm     
texture of material          Metal drawing frame, hardware back plate, hardware base     
weight          The total weight is about 27kg     
colour          Silver, white, black (optional)     
CPU          RK3288     
Memory          2G ram optional     
Built in memory          EMMC 8G/16G     
Decoding resolution          Up to 1080p     
operating system          Android 5. X, 7. X and above     
Network support          Ethernet, WiFi, wireless peripheral expansion     
Video playback          Support WMV, avi, flv, RM, RMVB, MPEG, TS, MP4, etc     
Picture format          Support BMP, JPEG, PNG, gif     
USB2.0 Interface          2 USB hosts, 2 USB sockets     
WIFI,BT          Built in WiFi, bt4.0 (optional, default WiFi)     
Ethernet          1, 10m / 100M adaptive Ethernet     
Audio and video output          Support left and right channel output, built-in dual 4R / 20W, 8R / 10W power amplifier     
RTC real time clock          support     
Timing switch          support     
System upgrade          Support local USB upgrade     
CPU          Dual core / I3 / i5 / i7, etc     
a main board          Industrial control motherboard     
Motherboard architecture          X86     
Memory          2G / 4G / 8g DDR3 optional     
Hard disk          64g / 128G / 256g solid state hard disk 500g / 1t mechanical hard disk (optional)     
External I / O port          two × USB2.0     
Infrared touch          2-10 infrared touch points     
Audio output          ≤8Ω5W (R/L)1*2     
power cord          Chinese Triangle plug     
PC power supply          12V5A     
network interface          Integrated network card, RJ45 interface     
Display interface          Integrated graphics card, support HDMI, VGA     
audio interface          Integrated sound card, support line out, MIC in interface. On board 5W power amplifier, support SPDIF fiber output     
Expansion bus          2 * mini - PCI expansion slot, supporting Bluetooth, WiFi, 3G and msata     
operating system          Windows XP, Windows 7 - 32 bit, 64 bit. Windows 8, etc
Note: choose Android or windows