I have run some tests and got around 90Mbps for both write and read. On top of that I’ve ran lengthy test with H2testw and that seemed to inidcating around 120 ish Gb of memory. So far was using the card in mavic 2 zoom and gopro 5 to shoot 4k footage, so far so good
I’ve reached out to SanDisk as well and they got back to me with the following:
I understand that you have purchased an Extreme 128GB A2 microSDXC card and you wish to know several things.
Regarding your first questions, please be advised that there might be some models with black and another card with red and gold colors. There is no a specific rule regarding this card that it has to be in one of these mentioned colors. You can see more information on our web site.
Regarding your second question, please be advised that to the benefit of our customers we are now offering the advanced A2 rated cards within packages which may be marked with the A1 App Performance printed on the package. Since you have purchased one of these cards, our intent is to provide you with the advanced performance provided by the A2 specification. You can identify A2 App Performance by the A2 symbol printed clearly on the front of your SanDisk Extreme/PLUS/PRO microSD memory card. If your card includes this symbol be assured that it now offers advanced performance for loading and launching apps when compared to cards with the A1 App Performance specification. You can find more information in the link I have provided above.
Please let us know in case you have any additional questions or you need any assistance.