CDIYTOOL 50 Pcs ID-125khz Writable rewritable T5577 fob tag for RFID Writer(Black)

Program them with a proxmark 3 easy and they always work. These are the real deal.

After getting a RFID writer and receiving tags with the machine that look vertically identical I was very skeptical. These worked to copy 125KHz without a hitch. I alkways manage to lose the key to my GYM, now I have several back ups!

These are great T5577 clones with unlocked traceability blocks that you can modify, meaning you can use these with Keysy or Mr. KeyFob writers if you can rewrite blocks 1 and 2 on Page 1 to be something those writer's DRM will validate. (I used a Proxmark 3 Easy).They ship preconfigured to emulate an EM 410x with the ID 0000001450. I've only tested cloning EM 4305 tags and that worked fine, I imagine all other emulations will work fine as well.I will buy again.

These can replace the “proprietary” cards that are much more expensive. I’ve been able to get these to work on Kantech, Atrium, and Brivo access control systems. Our employees love how lightweight and small these are.These also bring into light how insecure RFID systems are in general. The fact that if you have a RFID cloner device these key fobs can impersonate most any of them.

Worked as described.

I have on programmed a couple but the worked perfectly.

Advertised as writable but they came preprogrammed. I cannot program them like I have done with other key fobs.

Rewritable and easy to erase. Great fob for making and duplicating assets.