125khz RFID reader/writer with USB interface  Could Read and Write and copy/duplicate ID cards and re-use.

Specifications:

• Chip Type: ATA5577
• Storage Capacity: 363bits
• Operating Frequency: 125KHZ
• Maximum Read/write Distance: 3-5cm
• Support Write/Copy Cards/Tags Type: 5200, 5577, 4305, 5567
• Size: Approx. 10.7 * 6.8cm / 4.21 * 2.68inch
• Package Weight: 132g