Pcs of 10 UID IC Card Changeable Smart Card Clone Card for 1K S50 MF1 RFID 13.56MHz Access Control Block 0 Sector Writable

They appear to work well. No issues!

Was a little skeptical because they’re so cheap, but they worked just as intended. Very happy with my purchase.

Everything works well, can write them, read them, erase and write again.

Cards I got a pack of 10 to backup some Skylanders they work fine if your just planning to use one Skylanders at a time but because they are UID LOCKED you can't use two at a time which mean no Swappers, no multiplayer, no vehicles, and no magic items. Wish it stated it was UID LOCKED before I bought it but still an option if you don't mind the some limitations

Works as it should.

I just picked these cards up from the post office and conducted an initial scan of the cards using my Proxmark3 (RRG/Iceman). My initial assessment showed that all of the cards have unique UIDs in sector 0, with Magic Gen 1a capabilities, and the UID can be modified. Everything seems to be in perfect working order, working as described!

Needed a new rfid card for my hidden cabinet gun safe and it these worked perfectly.

Cannot change the UID on these cards as advertised. I tried a host of methods and a real sector 0 re-writable card would've responded to at least one. They all failed with code 0x1, the card didn't respond to any of them.

Not as mention sector 0 re writable

J'ai pu effectuer toutes mes copies sans aucun problème et elles fonctionnent correctement.

For people complaining not able to write into UID, you can't use Mifare classic on Android. You need an external USB NFC writer to do so.

It works. I could write on it

je voulais utiliser cette carte pour dupliquer mon badge de porte d'entrer.mais impossible. il n'est pas vierge mais a déjà un numéro intégré. donc impossible.