Review on 64GB Amplim MicroSDXC U3 Class 10 V30 UHS-I TF Memory Card With Adapter For Nintendo Switch, Go Pro Hero, Surface Phone Galaxy Camera Security Cam Tablet by Reginald Truitt

I recently tested a number of 16 and 32gb cards for use in a Raspberry Pi application. The tests were performed in CrystalDiskMark 7.0 using the "Real World" profile. Although this card showed a super-fast sequential read speed of 88MB/s and an acceptable 4k random read speed of 9.7MB/s, its write speed of 10.5MB/s sequential and 2.9MB/s random barely qualifies it as a Class 10, much less an A1 card.If you're looking for a fast inexpensive Micro SD, have a look at this one: https://smile.amazon.com/gp/product/B0834R2C6T/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1For about the same cost per card, you get twice the capacity and about 4 times the speed.