Feature: 1. Quick Reading: The USB interface is used for plug and play, with a wire length of approximately 1.4 meters. The interface cable is wrapped in PVC material for durability and higher transmission efficiency. 2. Fast in Response: Fast non contact card reading, reading speed is as quick as 0.2 seconds, reading and writing distance up to 8cm, card reading interval 0.2 seconds, supporting IC card reading and writing. 3. Free of Driver: Stable performance and strong compatibility, using microelectronic RF modules, for Windows, for LIUNX, for Android and other systems plug and play, without the need to install driver software. 4. Good Stability: Equipped with sponge pads on all four sides at the bottom, anti slip and wear resistant sponge pads with detachable screws inside. 5. Fine PVC Casing: Exquisite craftsmanship, scratch resistant and durable shell made of PVC material, with a durable surface frosted and environmentally friendly spray molding, exquisite craftsmanship. Specification: Item Type: IC Card Reader Model: R20C-USB Reading Speed: 0.2S Card Reading Distance: Approx. 0 ~ 80mm / 0 ~ 3.15in Card Reading Spacing: 0.5S Communication Interface: USB Interface Power Supply: USB Power Supply Working Voltage: 5V Working Current: 100mA. Package List: 1 x IC Card Reader1 x USB Cable