The firmware of A11-C has been upgraded to the New Firmware. It brings many new experiences, including the new stunning GUI, rock-solid stability, faster matching speed and better expandability. Users can easily manage data of A11-C via RS232/485, TCP/IP, and USB-host. Most importantly, all the functions can still operate in a networking state. A11-C is compatibility with various types of USB flash disks, ADMS andformer SDK. It also supports data backup and retrieve to avoid the risk of accidental deletion.It promotes the fingerprint time & attendance management to the next level. You can get the best of benefits from the A11-C.