Top critical review
Doesn't quite meet its claimed specifications
Reviewed in the United States 🇺🇸 on July 14, 2022
This is a serviceable microSDXC card, but it comes up short of its advertised capabilities in a few ways. The card gets the job done, but it's difficult to recommend over alternatives that actually meet or exceed their stated specifications.
Capacity: This card's unformatted size is 62.5GB, which leaves 58.2GB available after formatting. That's noticeably smaller than my other 64GB SD cards, which typically show around 59.7GB after formatting.
Video Recording: This card displays the V30 logo, which should guarantee a minimum 30MB/s writing speed. Unfortunately, the card manages just 26.4MB/s. The V30 spec is meant to represent 4K video recording, so in such usage, this card may have difficulty keeping up.
Application performance: The card displays the A1 logo, which should guarantee at least 1500 reading IOPS and 500 writing IOPS. Unfortunately, the card reaches only 1000 IOPS while reading. Thus, this card may feel sluggish if used to host an operating system (e.g., Raspberry Pi) or if used as a phone's app storage.
Overall, this microSDXC is functionally sound, but its capacity and performance both fall short of the advertised specs. Three stars.