Difference in UHS-I and UHS-II SD cards

I am planning to buy a new SD card as mine’s lost. I am very new to technology and I don’t understand the difference between UHS-I and UHS-II SD cards. Does it actually make a noticeable difference in speed or performance for things like photos and videos?

Tagged: SD card

SD card

All Replies

Viewing 3 replies - 1 through 3 (of 3 total)

Deno

Participant

August 19, 2025 at 9:15 am

UHS-I SD cards are only capable of V10 & V30 speeds, while UHS-II SD cards can perform at V60 and V90 speeds.

Kai Vortex

Participant

July 18, 2025 at 5:10 am

Hey! In my experience, upgrading to a UHS-II card can make a significant difference, especially if you’re shooting a large number of high-resolution photos or 4K video. UHS-II cards have extra pins that enable faster data transfer, thereby speeding up processes such as buffering and file transfers. However, to truly see the benefit, your device must support UHS-II speeds. If it only supports UHS-I, then the faster card won’t give you much improvement. So, check your device specs first! If you’re mostly taking casual photos or videos, a good UHS-I card might be enough.

Lopez

Participant

July 16, 2025 at 10:19 am

Oh yeah, totally no difference—UHS-II just exists so tech nerds have something extra to argue about. Who needs faster speeds for high-res photos or 4K videos anyway? It’s not like performance matters when you’re just trying to capture your cat doing backflips.

Viewing 3 replies - 1 through 3 (of 3 total)