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Item#: N82E16820171972
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5 out of 5 eggs Quality comes at a price. 02/28/2014

This review is from: SanDisk Extreme PRO 128GB USB 3.0 Flash Drive Model SDCZ88-128G-G46


First things first, have a look at both the HD Tune Pro and CrystalDiskMark results for this drive:

HD Tune Pro (Read)
MIN: 192.1 MB/s
MAX: 200.2 MB/s
AVG: 198.7 MB/s
ACS: 0.277 ms
Random Access
4KB: 12.7 MB/s
1MB: 173.226 MB/s
RND: 154.564 MB/s

CrystalDiskMark (Read, Write)
SEQ: 209.8 MB/s, 203.2 MB/s
512K: 153.5 MB/s, 25.62 MB/s
4K: 14.08 MB/s, 10.90 MB/s
4K32: 10.57 MB/s, 11.04 MB/s

The drive peaked around 220 MB/s in both directions on a few tests, but is not reported in the averages. Among USB 3.0 flash drives, these are close to the fastest (if not the fastest) speeds available. Particularly, in the write speed, where many other flash drives fall well-below 100 MB/s which makes transferring files to the drive take around 2.5 times longer than this one.

The drive is rated up to 260 MB/s read and 240 MB/s write, which I'm not really seeing, although I would attribute that to factors in my test rig preventing optimal speeds. I've seen other tests hit higher speeds than I am, despite my best efforts, so I won't criticize SanDisk.

The encryption software creates a section of the drive to password-protect your files. It's a nice feature coming out of the box, as far as encryption software goes it's nothing revolutionary. Since it's already pre-installed on the drive at first use, which makes it ready to go. It's a nice feature if you need it, otherwise you can easily just delete it off the drive.


This drive is marked-up close to $50 more, compared to other 128 GB flash drives. It's not the most expensive drive at this capacity, but it's close. That being said, it's also the fastest. You'll be paying a premium for enhanced speeds.

Warranty duration is a bit short. Two years, vs up to 5 years from some other popular flash drive manufacturers. It's especially disappointing considering this is a top-tier flash drive, and other manufacturers are putting longer warranties on their budget drives. I think SanDisk can do better.

Other Thoughts:

You just need to ask yourself if the extra speed, particularly in the amazing write speeds, is worth it to you. A typical USB 3.0 flash drive offers speeds around 50% of what this SanDisk drive is capable of.

If you need a portable way to transfer large files frequently, this drive is your best bet.

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  • Jean M.
  • EggXpert
  • Owned For: 1 day to 1 week

Home > 
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SanDisk > 
Item#: N82E16820171972
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