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SanDisk Ultra 128GB SDXC and 64GB microSDXC Memory Cards Review

SanDisk Ultra 128GB SDXC and 64GB microSDXC Memory Cards Review

SanDisk's Ultra SDXC and microSDXC memory cards make their way through the lab. Follow on as Tyler puts them through their paces to see how they perform.

By Tyler Bernath from Oct 1, 2014 @ 17:20 CDT
TweakTown Rating: 86%Manufacturer: SanDisk

As most of you know, SanDisk is a global leader in flash memory solutions. With the recent release of their 512GB Extreme Pro SDXC solution, it's quite apparent what direction the market is heading.

In the lab today, we have a high capacity solution from SanDisk, and while it isn't the 512GB monster, it does carry 128GB of capacity. The SanDisk Ultra portfolio of memory cards is catered to the average consumer. These cards work great with compact and mid-range point and shoot cameras and camcorders with read speeds up to 30 MB/s.

Switching gears, we move to the 64GB SanDisk Ultra microSDXC. This card carries both UHS I and Speed Class 10 designations, and is marketed towards smartphone and tablet users. Performance of this solution is said to reach speed of 30 MB/s read/write.

MSRP of the SanDisk Ultra SDXC in the 128GB capacity is listed at $199.99 with a lifetime warranty. The 64GB SanDisk Ultra microSDXC is listed at $99.99, also with a lifetime warranty.


Packaging for each of the SanDisk Ultra memory cards find the cards in typical bubble type container. Marketing numbers are located at the top right with capacity noted above.


The SanDisk Ultra 128GB SDXC, carries the standard red on black color palette. Capacity is listed in bold lettering with a small label so you can keep track what is stored on the card.


The microSDXC SanDisk Ultra and its retail packaging included a SD adapter. Capacity of the card is listed in bold font with a grey/red color palette.


The 64GB SanDisk Ultra microSDXC is factory formatted with the exFAT file system. The usable capacity after formatting is 59.4GB.


CrystalDiskMark results for the Ultra microSDXC came in at 46 MB/s read and 13 MB/s write.


Price/Performance put the SanDisk Ultra microSDXC at 80% and fifth in our charts.


Switching gears over to the SanDisk Ultra 128GB SDXC, we found this drive factory formatted with the exFAT file system. Useable capacity after formatting is 119GB.


Sequential read for the Ultra came in at 46.9 MB/s, while write performance hovered around 13.8 MB/s.


Price/Performance for the 128GB SanDisk Ultra ended up at 47%, due to its high price per GB near $2.

The SanDisk Ultra line-up largely being focused towards average consumer with compact point and shoot cameras, smartphones and tablets, really depends on having a decent amount of capacity for the price. The Ultra 128GB surely takes this to another level, and while it doesn't have the highest performance, it carries plenty for the casual user. Price, on the other hand, is quite high at this point, largely due to its new to the market nature, and as most things should come down over time.

The SanDisk Ultra microSDXC solution, on the other hand, is priced about right for it price/performance ratio, and actually lands just above Samsung's EVO microSDXC in our charts.

Performance of both of these cards came in around the same numbers 47 MB/s read and 13 MB/s write. Build quality was good and being SD cards, they are temperature, shock and waterproof. Overall, the SanDisk Ultra SDXC and microSDXC solutions are great for the casual user, but I would look around for the best price when you're out shopping.

PRICING: You can find the SanDisk Ultra memory cards for sale below. The prices listed are valid at the time of writing but can change at any time. Click the link to see the very latest pricing for the best deal.

United States: The SanDisk Ultra 128GB SDXC retails for $79.99 at Amazon, and the SanDisk 64GB Mobile Ultra MicroSDXC retails for $31.49 at Amazon

Quality including Design and Build90%
General Features90%
Bundle and Packaging85%
Value for Money85%
Overall TweakTown Rating86%

The Bottom Line: SanDisk's Ultra 128GB SDXC solution is a bit pricey at this point in time, but if you're one that wants the capacity, it is available. The Ultra microSDXC, on the other hand, is one of the best cards available in terms of price/performance.

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