It is a card exit reader to be used with any of the master devices such as SlimBeast(i33), FaceBot (f31), etc, It supports 125khz TK4100 chip based RFID card. It works either on wiegand-26 or wiegand-34 communication. The reading distance is supported up to 8cm.
Product dimension is: 11.5cm x 7cm x 1.5cm stars, based on reviews $25.00