Housing Material: plastic Color: Black This is a card reader that supports reading only. It does not support writing. Plug directly into the computer to use. No software installation required. Product Introduction: USB card reader transfers the serial number of the card directly to a computer via the USB port. Users do not need to install any drivers. No external power supply required. When the card reader is connected to the computer's USB port, the indicator light alternates between red and green. After two beeps are heard, the red light remains steady, indicating the device is ready. The card number will be displayed at the cursor location after swiping the card. Technical parameters: Support systems: Compatible with common systems that support USB keyboards Operating frequency: 13.56MHz Supported cards: 13.56MHz MF1 S50 card and compatible cards Reading distance: up to 10cm Working current: 40mA Physical dimensions: 105mm x 70mm x 12mm Card format options: 8H10D (before 10), 6H10D, 6H8D, 2H3D + 4H5D (after 8), 10H, 8H, 6H, 4H5D+4H5D Optional settings include anti-code, leading zero, and input mode; customizable options available Quantity: 1 piece Note: Due to differences in monitor displays, the picture may not reflect the actual color of the item. Package includes: 1 x Mifare Card IC Card Reader USB Hub 13.56MHz MF1 S50 Thin 1 x USB cable