Alternative to xM1 for Cloning a Mifare Ultralight?

Hello, I am a newbie when it comes to this stuff so I apologize if I’m being ignorant.

I was wondering if an implant exists that is capable of cloning the 7-byte ID of a Mifare Ultralight card.

The gym I go to (fit4less) uses one to open doors in the building, and it would be nice if I didn’t have to carry around a card all the time.

The reader only checks for the ID of the card to allow access, so I know that if I can clone it I’ll be able to access the facility. I know the xM1 only works for cards with a 4-byte ID, and I haven’t been able to find anything that works with a 7-byte online, so I figured I would ask here.

Thanks in advance!


I have a test card (Magic NTAG) but I am away from home (and my test kit) at the moment so I can’t test it for you.

KSEC have 2 left in stock if you want to test it yourself…they are pricey though.

Also the chip itself is not the most stable

A conversion may be your best option, have a look at payment conversion

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Awesome, thanks for the info!