The S3 contact smart IC card reading and writing module supports reading and writing. The contact smart card complies with the ISO7816 standard. Optional USB interface or serial port RS232 for online connection. Compliant with CCID standards, can be plug and play, easy to use and install. In order to improve safety, it is also possible to configure a SAM card in the read and write device that complies with ISO7816-3 and GSM 11.11 standards.

The RDM series is also divided into external contact type IC card readers and internal contact type IC card readers. The internal readers can be placed inside a PC (3-inch soft drive size) and powered by 5V from the computer motherboard.