AngelbirdAV PRO SD V60 MK2-256 GB - SDXC UHS-II Memory Card - Widely Compatible - up to 6K - for High-Res Photography, Continuous Mode Shooting and Light Video Production

I received my order of 2 SD cards. I logged onto the Angelbird website to register them for th 1) 3-year warranty, 2) Customer Service & technical support, & 3)Free data recovery service. In order to do this I was required to enter the serial number of these 2 SD cards. There was no s/n to be found. After a couple of e-mails to Angelbird, I still couldn't find a s/n. I was scanning the back of the packaging to send to them to show there was no s/n on the box. Then I thought, "Did Amazon place their Bar Code sticker over Angelbird's serial number?" They sure did!!! I tried peeling off one of the labels and it took part of the box with it so no s/n.I called Amazon and they had me return them for a Refund. Now I have to find another pair of good SD cards to record my HDR Video onto.I asked Amazon to after this choose a better spot for their Bar Code. I doubt very much they will do it.

Write Speed: 78~86MB/sRead Speed: over 200MB/swith Lexar RW500 Card Reader@Windows 10