

Unlock the Future of Access Control! 🔑
The UID7B1K S50 is a set of 5 rewritable smart IC cards featuring a 7-byte UID that can be easily modified using the ACR122U-A9 device. With a standard size of 85 x 54 mm, these cards are designed for seamless integration and enhanced security, making them ideal for various applications.
| ASIN | B07QM1GWL6 |
| Batteries required | No |
| Best Sellers Rank | #543,289 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #292 in Commercial Access Cards |
| Customer Reviews | 3.0 3.0 out of 5 stars (7) |
| Item Weight | 1.13 ounces |
| Item model number | XC233 |
| Manufacturer | XCRFID |
| Package Dimensions | 3.94 x 3.62 x 1.02 inches |
N**R
UID NOT modifiable/changeable
The description states that this card is UID rewritable; however, this is not true. I attempted to write a saved UID, which is my apartment key, using my Flipper Zero and the NFC Magic app. After writing, I scanned the card’s UID, and it remained unchanged, confirming that the UID cannot be modified.
K**E
Says programmed but doesn’t function, maybe I’m not smart enough
Copied key to a few and said written, but didn’t open any doors
Trustpilot
1 month ago
4 days ago