This is the fastest SD I've used and the price is about the same as the slower ones. Works great in a Canon EOS Rebel T4.

Crazy-fast memory cards, extra plus for the accompanying license (1 year) by SanDisk's RescuePRO Deluxe!

Last month SanDisk announced the world's fastest microSDHC mobile memory card and we just had to get our hands on one to see what it was all about. The SanDisk Extreme Pro microSDHC UHS-I card is rated at 95 MB/s read and 90 MB/s write, so this card is going to be fast.

I always use SanDisk memory for all my gadget data storage and never had any complain. The access time or data transfer is quite fast, more than average of other memory. Price might be slightly higher, but for performance it's not a problem.