The HDW-IMP-80 is a dual-frequency proximity card reader. The card reader is capable of working with a wide variety of card types. This is a 13.56 MHz contactless, or 125 kHz proximity, card reader. It will read: low and high frequency card types, typical card types including basic HID iClass, ISO 14443A, ISO 15693, Indala, CASI-RUSCO, and HID PROX. The device can support up to four card configurations.