Topaz SignatureGem LCD 4x3 T-LBK755 Series Dual Serial/Virtual Serial via USB (High Speed) BackLit T-LBK755SE-BBSB-R Signature Capture Pad Part Number: T-LBK755SE-BBSB-R Color: Black Interfaces: Dual Serial/Virtual Serial via USB (High Speed) Sensor Type: Tempered glass surface Rated to 2 million signatures High-performance E/M digitizer Pen Type: Active low-power, rugged E/M, b rugged E/M, battery-less pen Backlit Option: Yes Signing Area Size: 4.4 inches x 2.5 inches Resolution: Exceeds industry standards Programmable PPI