... the scanned data before sending it over the USB interface. KST products utilize optical fingerprint scanning technology for ... Excellent adaption for dry, wet, harsh fingerprint· USB interface for high speed communication· Windows98,Me,NT4.0,2000 ... Fingerprint sensorOptical SensorResolution500DPIImage size15.4mm*18.0mmInterfaceUSB1.1, compatible with USB1.0,1.1,2.0 full speedCompatible OSWindows98,Me,NT4 ...