The RS232-B1 v2 is a low cost full RFID/NFC read/write device with RS232 interface that can operate in "host" connected mode or "stand alone" mode. Supports Mifare Classic 1k & 4k, NTAG2xx and Ultralight. Additionally, you can read serial numbers from Mifare Plus and Mifare DESfire. The RS232-B1 is based on our RFID-B1 module but is equipped with an additional integral antenna, an LED for tag in the field indication/ interrupt, mounting holes and flexible plated connection holes. The RS232-B1 is an ideal choice if the user wishes to add RFID capability to their design quickly and easily.

Fully supports read/write to Mifare1k, Mifare4k, Ntag21x, Ultralight
Supports serial number (UID) read only of other ISO14443 based transponders such as DESfire, Mifare Plus etc.
Low power consumption
Small footprint
High transponder read/write speed
Powerful encryption