UHF RFID reader dongle suits authentication apps

What is USB?
The Universal Serial Bus or USB is a communications architecture that allows a PC to interconnect various devices using a simple four-wire cable. A standard interface allows data rates of 12Mbps.

What is RFID?
Short for radio frequency identification, RFID is a technology that uses electronic tags for storing data. An RFID system consists of an antenna and a transceiver that reads the RF and transfers the information to a processing device, and a transponder or tag, which is an IC that holds the RF circuitry and the information to be transmitted.