14inch 15.6inch 18.5inch 21.5inch 23.6inch 27inch 31.5inch 42inch 55inch 1920x1080 IPS Multi Touch Screen Android 6.1 Quad Core All in One Tablet PC 

* 14inch 15.6inch 18.5inch 21.5inch 23.6inch 27inch 31.5inch 42inch 55inch  IPS HD Display, Multi-touch screen optional;
* Built-in Wi-Fi; Camera optional;
* Support remote publishing software,many devices connect to one main server ;
* Comptiable with many other devices, such as cash devices,credit card devices,etc;
* Support most of other APPs from Android market;

System CPU RK3188 Quad-Core, 1.9GHz or Allwinner R18;
O/S Android 4.4.2 or 6.1
Ram 1GB
Flash 8GB
Display Screen 14inch 15.6inch 18.5inch 21.5inch 23.6inch 27inch 31.5inch 42inch 55inch IPS Screen
Touch Panel 10 points multi touch panel (Optional, extra cost needed)
Resolution 1366*768 or 1920x1080
Display ratio 16:9
Contrast ratio 1000:1
Brightness 350cdm2
Internet Wi-Fi Built-in Wifi, 802.11b/g/n;
Ethernet Support
3G Support External USB 3G Dongle;
Bluetooth Support
I/O ports SD card x1 (Max up to 32GB)
Mini USB x1 (USB OTG)
USB Host x3 (USB Host 2.0)
RJ-45 x1 (Ethernet 10M/100M)
DC-in x1 (12V/3.0A)
Earphone x1 (3.5mm stereo headphone output)
Media play Video MPEG-1,MPEG-2,MPEG-4,H.263,H.264,VC1,RV etc.,support up to 1080P;
Audio MP3, WMA, AAC, etc.
Picture JPG,JPEG
Others Camera Front 2.0M camera (Optional, extra cost needed;)
Wireless mouse Support
Wireless keyboard Support
Speakers 2x3W
OSD language Support Multi languages
Software Support most of Android Market APPs;
Accessaries Stand x1
Power adapter x1 (US or EU or UK standard, other adapters are optional)
User manual x1 (English or Chinese standard)