SanDisk Extreme microSDXC UHS-I Memory Card Review

Name: SanDisk Extreme microSDXC UHS-I Memory Card
Brand: SanDisk

by Marco Chiappetta — Friday, July 26, 2013, 10:56 AM EDT

Alright, at this point you’ve seen that SanDisk’s performance claims for their Extreme series microSDXC cards are the real deal. In both real-world situations and in synthetic benchmarks, the 64GB SanDisk Extreme microSDXC card we tested had no problem exceeding the speeds presented in SanDisk’s specifications, usually by about 10% - 15%. Keep in mind, however, you’ll need a device or card reader capable of the higher transfer speeds. And old USB 1.0 reader ain’t gonna cut it.

They’re not exactly cheap, but the SanDisk’s Extreme microSDXC cards are worth the extra scratch if you’re in need of a high-performance memory card. As of today, you can find the SanDisk Extreme micoSDHC / microSDXC cards on-line at the following price points:

At this prices, you can find similar capacity cards for roughly half the amount, but they won’t perform nearly as well. The Class 10 and UHS-I specifications call for a minimum transfer speed of only 10MB/s. With over 80MB/s and 50MB/s reads and writes, respectively, these SanDisk Extreme cards obviously exceed the minimum spec. Cheaper cards do as well—it’s common to find 64GB cards that offer 50MB/s reads and 10MB/s writes—but they don’t come close to what the SanDisk Extreme cards can do.


Great Performance Lifetime Warranty	Kinda Pricey

Tags: Flash, Storage, Sandisk, 64GB, microSDXC

Marco Chiappetta

Marco's interest in computing and technology dates all the way back to his early childhood. Even before being exposed to the Commodore P.E.T. and later the Commodore 64 in the early ‘80s, he was interested in electricity and electronics, and he still has the modded AFX cars and shop-worn soldering irons to prove it. Once he got his hands on his own Commodore 64, however, computing became Marco's passion. Throughout his academic and professional lives, Marco has worked with virtually every major platform from the TRS-80 and Amiga, to today's high end, multi-core servers. Over the years, he has worked in many fields related to technology and computing, including system design, assembly and sales, professional quality assurance testing, and technical writing. In addition to being the Managing Editor here at HotHardware for close to 15 years, Marco is also a freelance writer whose work has been published in a number of PC and technology related print publications and he is a regular fixture on HotHardware’s own Two and a Half Geeks webcast. - Contact: marco(at)hothardware(dot)com