Description: Brand new and high quality Material: Plastic Black color This is a card reader, the card reader supports reading. It does not support writing. Can be used directly in the computer. You do not need to download any program. THANK YOU. Product Introduction: The USB card reader implements the card serial number directly to a computer through the USB port, users do not need to download any driver, no external power, the card reader is connected to the computer's USB port, the card indicator alternates between red and green, until you hear the buzzer beep twice, only the red light is on, you can start reading the card, the credit card after the card number is displayed at the cursor. Technical parameters: Support system: Use common systems that support USB keyboard Operating frequency: 13.56MHz Supports short 13.56MHz MF1 S50 cards and compatible cards Reading distance: