... for enhanced security, expandable on request3. Multi-interface: RS232, RS485, USB 2.0, TTL, SPI, Clock & Data / ABA1,2 / Wiegand26 ... ImagesExternal antenna on request Three kinds of external antenna with different dimension are for selection, with tuner to adjust reading ... (2) Power supply (9V) (3) Serial communication cable (4) USB communication cable (5) Wires (6) Testing cards (7) Testing tags ...