OMINIKEY 5427 CK R54270001 USB Smart Card Reader Reads High & Low Frequencies Contactless Smart Cards CCID and Keyboard Wedge Interfaces Security - Enhanced System Security Supporting Low and High Frequency Credentials Including HID Proxy & Indala, MIFARE Classic, MIFARE DESFire EV1, iCLASS, ICLASS SE, iCLASS SEOS, iCLASS Elite, and other SIO-enabled Credentials Small 2.79' x 3.66' x 0.63 / 3.53 oz.