This is EM4100/4102 ,is Read-only, not programable,not HID!!!!
- 100% brand new and high quality
- Frequency: 125 KHz
- Card type: EM 4100/4102 125Khz ID CARD
- Size: 85mm x 54mm x0.6mm
- Material: PVC
- Each card pre-programmed with a unique ID number, which is printed on the card
- ID card is suitable for 125KHZ card reader and reading distance is 0 - 10cm