SanDisk Ultra Fit 128GB USB 3.0 Flash Drive (SDCZ43-128G-GAM46) [Newest Version]
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This ultraāsmall, lowāprofile USB 3.0 drive stays put for extra storage or moves media superāfast between devices. Now you can transfer a fullālength movie in less than 30 seconds, enjoy write speeds up to 15 times faster than standard USB 2.0 drives and count on everāpresent storage that is designed to stay put.
Most helpful customer reviews
231 of 238 people found the following review helpful.
It does not transfer data as fast as it is supposed too and burns you.
By Slick Nick
It does not transfer data as fast as it is supposed too and burns you. I was excited to use it for the first time, plugged it into the USB 3.0 and attempted to move 45gigs of data with a 40 MIN eta, yay! After five minutes the 30 min eta went to 6hrs and 45mins! the drive was slowing down... but why? I touched it and it burned me, so I busted out my thermal imaging camera to check and it was in excess of 130 degrees Fahrenheit, after it cooled down and started transferring slower. This is obviously a dangerous product as applied heat of 131 degrees Fahrenheit causes second-degree burns on exposed skin, how can they sell stuff like this?
444 of 470 people found the following review helpful.
Extremely hot. Dangerous product.
By Pagliano Servero
I copied ~15GB of big files to SanDisk 32GB model from a ThinkPad X1 Carbon. I noticed that the speed quickly dropped down to less than 10 MB/s, so I was disappointed because my USB 3.0 drives are consistently fast.
But as if the slow speed was not bad enough, I literally burned my fingers when I unplugged it. I did not receive a bad burn, but I can still feel the burn on the tips of my index finger 10 minutes later.
I am an adult male. I am not extra sensitive to hot temperatures. This device is a danger to both humans and to USB ports.
In their comments, SanDisk is lying about the max 95 F temp. I copied a 4GB file to the device, and measured the temp at 120 F - see attached pic. I assume it would go higher if I copied more data.
34 of 35 people found the following review helpful.
Gets too hot, ended up being corrupt on the first attempted use. READ REVIEWS BEFORE YOU BUY!
Of the (literal) HUNDRED+++ "SanDisk" storage drives I have purchased for over a decade, this is the first that's failed me. Not only did it fail me, but it failed on my FIRST attempt of use! :( I transferred 78GB file (Photo library - 1 file - Mac). Albeit, it took almost 7 hours to transfer, it did end up fully transferring). I then went on to transfer enough (additional) files to fill up 94-95% of it's registered capacity per my computer's displayed capacity of 124.22GB. I do this with all new storage drives I purchase - I fill them up almost to 100%, then transfer the files to another external storage system I have and check the integrity of the files sent from the new device to my ultimate backup device. If they made the transfer successfully on and off the new drive, I then precede to use it for whatever my heart desires.
Like other reviewers on here, it got extremely hot and ended up slowing down quite a bit (seemingly after seconds of initiating the copy/paste transfer). Unfortunately, the drive ended up becoming corrupt and now I can't remove the files from my trashcan. I've tried "Verifying" and "Repairing" the disk via "Disk Utility" on my MacBook air, as well as a secondary Apple Desktop. I've also attempted to remove it through the "Terminal" via Apple's latest OS system. Additionally, I've taken it to the local Apple store in-person to see if there was something else I wasn't trying... It's completely unusable now and what's also unfortunate is I just recently found the time to start working with it since purchased (Nov. 28th of last year) = past the 30 day return policy. Not only am I out the money I spent on this item, but I'm also out a number of hours (6+) of my time from attempting to resolve the issue. Huge disappointment. Seems as though SanDisk had a huge design flaw with this specific model (makes sense, considering the advertised capacity versus the physical dimensions). Do yourself a favor and look elsewhere for your external digital storage needs.