10pcs Writable T5557 T5567 T5577 EM4305 Rewritable Rewrite ID Proximity Card for ID Writer Copier Duplicate (Thin Card)

I could not enter a number to program the card, perhaps my ignorance. But when I did a read from an existing key and then did writes to these cards, they worked perfectly! I just did 10 writes for all of the cards and they all work as planned.

Good quality and works good.

The cards seem decent, have good range, but I was shocked to see that every single one would already open my front door! Apparently at least one of my cards I already have is a common, or some other way the exact same as these! But, I’m glad to know and since they writable it won’t be a problem and actually solved a problem I didn’t know I had.

I wish more products such as this one identified where they are made. Card is not compatible with the system I need to use these cards for. Waste of time and money

All 10 cards were successfully writable and worked with the 125kHZ HID Prox 36-Bit Weigand format. I just wished they were a bit slimmer still, not the thickest cards, but still pretty thick

First time I bought them, they worked great. But the second time I bought them, they didn’t work as well. Is there a quality control issue?