... /4wires/5 wires /IR touch d2550/i3 CPU,2/4gb ram,250/320/500gb hdd,LCD/LED panel 1080p Feature-----CPU ... :Intel D2550,1.86GHZ------5-wires resistance ------2G RAM(can up to 4GB),320G HDD /16-32G SSD------VGA ... " unique all in one PC,d2550/i3 CPU,2/4gb ram,250/320/500gb hdd,LCD/LED panel(1080p,touch ok)