Top critical review
Not class 10 and not worth your time
Reviewed in the United States on October 24, 2019
I was skeptical about the no-name brand but given they had good reviews I thought I'd give it a shot. I was using these for a Raspberry Pi 3 and they were a complete letdown. I started by writing the desired OS onto them with Etcher. Each one failed the checksums on the first go around. Most were successful on the second attempt. Once in the pi, the OS loaded fine, but I could tell they weren't operating at a full class 10 standard (at least they weren't meeting the expectation set by the name brands). After about the 3rd or 4th OS write via Etcher, the cards would rarely have the correct checksum, and even when they did, Raspbian wouldn't get any farther than the rainbow box at initial power-on. Needless to say, I returned these, got the name brand, and haven't looked back. Any money I saved on these was lost in wasted time.