Fangrui Product Details 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 Software Communication Mode: Standard Hid Communication; Interface: Full-speed Usb Device Interface, Compatible With Usb V2.0 Power 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 Use Colour:black Material:plastic Package Contents: 1 * Usb Rfid Reader Kit Only The Above Pac