Regular Size for Pos All in one Touch Computer : 12 15 15.6 17 18.5 19 21.5 22 23.6 27 32 42 55 ; Key Characters for All in one PC: 12-55 inch Pos all in one pc; 15°to 85° rotable base; Commercial / Industrial motherboard; Support I3,I5,I7; Support camera /DVD / Wifi / Reader ; 500G HDD + 4G RAM; Support Windows7 / XP / XPE / Vista / 2000 / POS Ready / Linux; 6USB+1HDMI+1RJ45( 2RJ45 is option)+1VGA; 168 wide Viewing angle, 16.7M color ; High luminance ,high contrast,high resolution; IP 65 waterproof metal-case outframe; Fit for 802.11b\802.11g\802.11e WIFI; 100-240V AC ,CE FCC certificate ; Desktop and Embedded is option; Product Catalogue: SAW / Infrared / Capacitive / Resistive Touchscreen ; SAW / Infrared / Capacitive / Resistive / Nano Foil  Touch Monitor; All in one touch computer; Indoor/Outdoor Advertising display board; Education All in one  Whieboard; Self-service Multi-media Kiosk;