SonewTouch Memory Key Card, iButton Copy Card, Readable RFID Clone Duplicate Key, RFID TM Card Set, 5Pcs

I will not go into what I used them for as it would be long and complicated. If you know why ibuttons are and what they are used for it is enough to say that "they are writable and can be used with any RBID reader"

I can easily read these ibuttons but you can not write onto them. This was a waste of my time and money to be honest.

They read just fine, but despite the item description these are not writable. They work fine as unique keys but they do not function as targets for copying existing keys.

Description says 5 pcs. I received ONE.

Bought these with the intention of cloning some DS1990 style iButtons via Arduino controller. I was able to easily read the serial numbers from these, but unable to write new ones.So if these are writeable, I'd love to know how.

These are not rewritable. The description is completely bogus, these are not RW1990.

Bought them to close DS1996 key but they are read only and can’t be rewritten on

NO ERA LO QUE ESPERABA