Touch Technology Surface Acoustic Wave (SAW)Touchscreen Durability of SAW touchscreen Over 50 million touches on one location without failure;  Resolution:4096*4096 Available LCD screen Sizes 15.1"/17.1"/19.1" Cabinet Stainless steel cabinet with steel-like paint, anti-magnetic and  anti-static ability Standard Color Blue body with silver-grey frame Control panel power input, power switch, network input  Power Supply Max. Power consumption:200W; 220V AC, 5A  Audio Output power: 2×5W; double channels,  surround sound  Operational environmentTemperature:-5-70; Humidity: 40%-80%  Network interface BNC or RJ45 and RJ11  Cabinet dimensions  490mmL×460mmW×1390mmH17.1"  Net Weight 55KG Optional Component computer machine, card reader, barcode reader, metal keyboard, micro-printer, fingerprint reader