Xuhal 100 Pcs NFC Cards Blank PVC Black 868 Bytes Memory 216 Chip Business | Rewritable & Programmable Tags for Digital Business Exchange, Home Automation, Access Control, NFC Smartphones

They read and write very easily using the ACS ACR1252U and the NFC Tools Desktop App from WAKEDEV, or your phone using the NFC Tools app from the same company, and my phone reads it normally without any issues through my non-metallic case. I'm not sure what some other guy was complaining about with the cards being below their advertised storage amount, as when scanning them I'm reading them as NTAG-216 type NFC's with 924 bytes of storage. Now, I'm not a pro when it comes to these things, this is my first foray into it, but my understanding is that the displayed value (see image) of 924 bytes is total memory, and that at least most of that is writable. Maybe the other guy got a batch of NTAG-215 cards, but mine seem to be correct and even outperform the listing title's spec (not like I'd be using all of it anyways). As for the card itself, it has a very matte/satin finish. It's definitely not glossy (or even semi-gloss), but it's not so matte that it just absorbs all light that hits it. I'd compare it to a Satin or Egg Shell paint finish. I can't physically scratch the surface with my nails, but they are slightly marring the finish in a way that I'm not sure is reversable, so if you're going to be UV Printing designs onto these, you'll probably want to cover the entire card in the gloss stuff to avoid oily smudges or marring from other sources. They are also almost exactly the same size as my debit card, meaning these would be right at home in a standard wallet. Very happy with the purchase, at a price of about $0.22 per card, it's a really good deal for something that works as well as they do.

I wanted to clone my Ebike tag but I couldn't get it to work. I gave them to my friend to see what he can do with them. I'm still giving them five stars because it's me doing something wrong.

Muy buena calidad y fácil de programar excelente calidad

Well done. Keep this quality coming please. Each card is individually packaged, in this amazing "zip" style. I was impressed.

I've used these for business cards but they can be used for so much more. You can program them with anything you like

Easy to write to and convention as e business cards

These are advertised as 216 tags with 868 bytes of memory, all cards I've scanned so far only have 492 bytes of memory. they work, just not what was advertised and the limited capacity has caused issues with what I had originally bought these for.

I use these as employee ID cards, and advertisement at the same time and they're perfect for that. No issues programming or scanning.

Excellent