Fingerprint scanner: has USB and serial interface for option, provide SDK software, high quality, best service. Fingerprint reader:Parameters:TypeItemDescriptionFingerprint sensorSensor ... Fingerprint Scanning,Fingerprint Comparing(1:1),Fingerprint Searching (1:N),Online UpdateOthersSupport OSWindows XP/2000, Unix and LinuxImage resolution363dpiSensor size152×200 pixels Fingerprint readers ...