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´╗┐SanDisk Extreme 64GB microSDXC Card

In June 2012, SanDisk announced the worlds fastest microSDHC mobile memory card with the introduction of the SanDisk Extreme Pro microSDHC UHSI card series. The cards were available in just 8GB and 16GB capacities, but made up for the rather small sizes by being incredibly fast. We are talking up to 95 MB/s read and 90 MB/s write, so it was ideal smartphone and tablet users who wanted to boost their devices storage capacity while enjoying the fastest mobile experience. Over the past year the need for larger capacity memory cards have increased, so it shouldnt come as a surprise to anyone that SanDisk announced new 32GB and 64GB microSDXC UHSI memory cards that are part of the SanDisk Extreme Pro series.

The SanDisk Extreme microSDHC/microSDXC UHSI series is available in 16GB, 32GB and 64GB capacities. The MSRP ranges from $59.99 for the 16GB card to $199.99 for the 64GB card, but the street pricing is significantly lower and ranges from $30 to $102 shipped.

SanDisk Extreme 16 GB microSDHC SDSDQX016G $30.13 shipped

SanDisk Extreme 32 GB microSDHC SDSDQX032G $49.18 shipped

SanDisk Extreme 64 GB microSDHC SDSDQX064G $102.22 shipped

The 32GB/64GB cards are rated up to 80 MB/s read and 50 MB/s write, but the 16GB card is a tad slower with speed ratings of up to 80 MB/s read and 30 MB/s write. These speeds arent as fast as the SanDisk Extreme Pro microSDHC cards that were released last year, but they are still very fast. So fast, that SanDisk says that this is the worlds fastest 64GB microSDXC memory card!

The card that we were sent to review was the 64GB version that is sold under part number SDSDQX064G. This card is class 10 and UHS Speed Class 1 rated UHS104. We werent sent a retail package, but rather a reviewers kit that came with the SanDisk memory card and a pair of ocular lenses for smartphones and cameras. This was a nice gesture and something to try out on our smartphones, but sadly they attach magnetically. Our Apple iPhone 5, Samsung Galaxy S4 and Galaxy Note II all dont have any metal around the lens, so they wont stay attached. The retail packaged cards will come with the SanDisk Extreme microSDXC UHSI Memory Card, SD adapter, jewel case, and RescuePRO Deluxe software download.

SanDisk Extreme microSDXC UHSI 64GB Card Features:

Get unparalleled performance for your smartphone or Tablet

Fastest transfer speed at 80 MB/s read and 50 MB/s write

Featuring Class 10 for 3D and Full HD video 1080p

Superior Photo, Full HD Video and App Performance

Engineered with UHSI bus architecture

Waterproof, temperature proof, Xray proof, shock proof

The SanDisk Extreme microSDXC card is compatible with any microSDHC or microSDXCslotted device, so you can us it on thousands of devices without any issues. If you use it on older devices you might be speed limited by the host device, but one is usually always limiting the other.

Flipping the SanDisk Extreme microSDXC UHSI card over you can see some of the trace routes on the black PCB and then the eight pins needed for operation. As we already mentioned this is a UltraHigh Speed USH memory card. We were told by SanDisk that this UHSI card UHS104 interface, which means it supports a clock frequency of 208MHz. Lets take a look at how this card performs!