Dual Frequency EM4100 (125kHz) & Mifare Classic 1K (13.56MHz) Card

Do you want one card that can work with multiple systems?  This dual frequency card (also known as dual tech or dual format) can work with various lockers, door locks, photocopiers, access control systems etc. The card contains two chips and two antennas which work independently of each other on different frequencies - 125kHz & 13.56MHz.  The Mifare Classic chip features a unique serial number (UID/CSN) for each card.  The EM4100 chip also features a unique serial number for each card.

We also sell similar dual frequency cards:

• Dual Format HID Prox & Mifare Classic 1K Card (click here to see) : This is a similar dual tech card which comes programmed with unique serial numbers but has a 125kHz HID Prox chip instead of a 125kHz EM4100 chip.

• Dual Format T5577 & UID CUID Block 0 Changeable Card (click here to see) : This card doesn't have unique serial numbers for the 125kHz & 13.56MHz chips. Instead it is used with a programmer to write your own cards or clone or duplicate existing cards.

Are you looking for single frequency cards?

• EM4100 Card (click here to see)
• HID Prox Card (click here to see)
• Mifare Classic Card (click here to see)