EPA VESA ON,OFF,SUSPEND, STAND BY, 75*75mm, 100*100mm Video format(1080P) WMV,MKV,MOV,AVI,RM/RMVB,MPEG-2/4. Audio format MP3,WMA,3GP,AAC,FLAC,WAV.OGG Base Plastic/ Metal base(optional) Card reader Optional Power External 12V/1.5A Fittings Signal Line Power Adapter Audio Line Weight Outer carton dimension Four-in-one carton USB-HID,UART,RS232,RS485 Support Barcode Scanner, Receipt Printer, RFID Reader cashbox , Customer display , 2G/3G Dual-mode Dongle, MSR, IC CARD http://www.ksaiandroidpos.com