RFID/NFC Reader writer 13.56Mhz Multiple Protocol USB + TRF7970 USB/ RS232 (optional) / UART (optional) 13.56Mhz Multiple Protocol RFID and NFC Reader development module kit based on TI TRF7970 with software & document This is ideal for the electronic hobbyist or Small Consulting Company wishing to rush into the HOTTEST RFID field. Not out-dated Low-frequency (125kHz) , ours is High-frequency, state of the art RFID technology embedded Antenna.so that you needn't to pay extra 40usd+ for antenna.