UHS-1 is the interface protocol/generation, and sets the maximum data rate that the bus can support. U3/V30 are different generations of labelling that translate to a sustained sequential 30Mb/s write rate, which is the key criteria for video recording.
A1 is an application performance class, which cares about random IO performance as well as sequential. In addition to the IOPS numbers in the table, A1 also requires U1/V10 level sustained sequential performance (10MBps) which this card's U3 rating (30MBps) will easily be able to exceed.
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vortexmak - Wednesday, June 20, 2018 - link
Such a confusing mish mash of labelsUHS-I , U3
What's the difference?
DanNeely - Wednesday, June 20, 2018 - link
UHS-1 is the interface protocol/generation, and sets the maximum data rate that the bus can support. U3/V30 are different generations of labelling that translate to a sustained sequential 30Mb/s write rate, which is the key criteria for video recording.A1 is an application performance class, which cares about random IO performance as well as sequential. In addition to the IOPS numbers in the table, A1 also requires U1/V10 level sustained sequential performance (10MBps) which this card's U3 rating (30MBps) will easily be able to exceed.
https://www.sdcard.org/developers/overview/speed_c...
https://www.androidpolice.com/2017/05/09/buyers-gu...
69369369 - Sunday, June 24, 2018 - link
inb4 paying 50% extra for gamer brandingLiKenun - Sunday, June 24, 2018 - link
Only UHS-Ⅰ? No UHS-Ⅱ? Only A1? No A2? I didn’t know gamers settled for so much less.