Description <br> Here we offer you a high quality and tiny desktop EM card reader with USB interface. <br> He can read the ID number of 4100 EM card or other compatible cards. <br> Once the card is noticed, the ID number of the card will be sent directly via USB to the PC. <br> Brand new and high quality <br> High sensitivity and fast response <br> USB interface, no driver is required <br> He reads the number of the EM 4100 ID Card or compatible card <br> Support for EM Card 4100 <br> Dimensions: 95 x 61mm <br> ower supply: USB PC <br> Interface: USB, 106bit / s, no additional driver is needed <br> Distance of operation: up to 8 cm <br> Frequency: 125kHz <br> Material:Plastic <br> Packet content: <br> 1X USB Proximity Reader ID Card <br> 1X USB Cable <br> Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. <br>