Review on 💾 Amazon Basics 512GB microSDXC Memory Card with Full Size Adapter - A2, U3, 100 MB/s Read Speed by Cedric Edwards

They are really very good, CrystalDiskMark gives ratings that are on par with known brands, but I found that the reference program is sometimes very misleading because you are copying a large folder with many small files on a micro sd will very often slow down to an excruciating snail's pace, this RevainBasics was no different in that regard, it's elm but actually even as slow as it actually was 2-3x FASTER than other big brands So all in all that's it the best 64gb micro sd cards i have.