... , USB memory, RS-485 4.Support 3,000 fingerprints OTA710C Fingerprint Reader for time attendance & access control Technical Parameters:ItemSpecificationColorSilver-black, white ... , blue or redFingerprint Templates3,000Transaction Storage80,000Effective Reader Area16mm × 16mmCommunication ProtocolTCP/IP, USB, USB memory, RS-485IdentificationFingerprint, ...