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View Full Version : UHS vs Class specifications on SD card



Macross_Freek
May 18th, 2012, 02:28 PM
I've been scouring the internet for info about UHS and Class specs and how they are different.

I haven't found a lot of concrete information. Everything I'm reading says UHS is faster if compatible with the device so wanted to ask some things:

1. If the only markings on a card are the UHS ones, does this mean that a Class 10 card (maybe even a Class 4) could potentially beat the UHS one in a non-UHS device?

2. In a UHS device, is there any possibility of a Class 10 being faster than a UHS card?

Basically I'm deciding between two cards right now:

http://ncix.com/products/?sku=69778&vpn=AUSDH32GUI-RA1&manufacture=AData%20Technology
http://ncix.com/products/?sku=62042&vpn=AUSDH32GCL10-RA1&manufacture=AData%20Technology

For the time being at least, I'll be using the card in a non-UHS device. Since the UHS card doesn't have any Class markings, the Class 10 could potentially outperform the UHS card in a non-UHS device? Am I correct in assuming this?