RFID card reader is easy to operate and has fast card reading speed. If it is a standard HID device, there is no need to install the driver. The card number can be read in any edit box (for example: Notepad, WORD and other text editing software). This function is suitable for expanding the functions of existing software without making any modifications to the original softwareCommunication mode: standard HID communication;Interface: full-speed USB device interface, compatible with USB V2.0Power supply mode: USB universal serial bus interface power supply;Working frequency: 125 KHz;Maximum sensing distance: 3-8CM;Supported card types: EM series, 4001 series and compatible radio frequency ID cards;Power consumption: less than 0.5 W;Use environment: temperature 0--50, humidity: 50-95RH, air pressure: 88-106Kpa.The actual product may have slight color difference or difference, which will not affect the useColour:blackMaterial:plasticPackage Contents:1 * USB RFID Reader KitOnly the above package content, other products are not included.Note: Light reflection 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.