HID multiCLASS RPK40 Contactless Smart Card Reader with Keypad, Wall Switch Mount, Prox Support (HID Prox, SWID and EM4102 - 32 bits), 13.56 MHz Interpreter (SIOS/SEOS - Maximum Compatibility), Color - Black, Wiegand Controller Communications, Pigtail Connection (18"), Standard Keyset (V1), 0464 Configuration Settings. The RPK40 is a multi-technology card reader designed for customers upgrading their current card system from HID Prox to iCLASS credentials. With the RPK40 reader, the customer has the ability to transition to smart cards over time while incorporating the use of multiple card technologies within a single building or across multiple facilities. With the RPK40 multiCLASS reader, you get enhanced security through mutual authentication and data encryption. Only the multiCLASS family of products provides true iCLASS security, the ease of Prox, the power of smart cards and the confidence of choosing HID, the worldwide leader in access control.