Take important files with you on the go with this SanDisk Ultra SDCZ48-128G-A46 USB 3.0 flash drive, which features a 128GB capacity that provides plenty of space to store pictures, videos, music, documents and more.
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not as advertised
Posted by: emb1911 from: on
Tried this 128gb usb 3 drive on 2 different computers. Write speeds were horrible. 6-10mb/sec. I contacted Sandisk who then told me 100mb/sec READ speeds were fine BUT write speeds were not published and 10mb/sec is acceptable.... !... Might as well bought cheaper usb 2. Will never buy sandisk product again terrible support. PS I work repairing computers.
42 out of 50 found this review helpful.
Write Protected after first 5 minutes of use
Posted by: Vlad from: DFW on
I started copying files from my computer - around 23 gigs of data. The drive became extremely hot after about 2-3 minutes, and stopped responding - I got an error that the drive was not found. At this point the drive became *write protected* - no matter what I've tried, I could not make it writable again. I'm a computer professional with a degree in computer science and over 10 years of experience.. Sandisk, I want my money back.
43 out of 53 found this review helpful.
Posted by: surfahdude from: Honolulu, Hawaii on
I bought this flash drive for its capacity and USB 3.0 which is supposed to give you a faster transfer rate. The problem is that the flash drive is rated at 100MB/Sec but only with read speed. Realistically, the read speed is more like 60-80MB/sec. But the write speed on this flash drive is a paltry 20MB/sec in real use. Copying 128GB of files to the drive took almost an hour. I could not figure this out until I went to the Sandisk site and saw that it does not specify write speed, just stating that the write speed, stating "Up to 100MB/s read speed; write speed lower and varies by capacity."
After reading the specs on some other flash drives, write speed specs really vary on flash drives, going from 15MB/sec to 120MB/sec.
The good thing about this flash drive is it is capless, the drive connector slides into the housing.
21 out of 23 found this review helpful.
Posted by: Robert50 from: Redmond, WA on
I bought usb 3.0 because it is supposed to be quite a bit faster than 2.0. guess that does not apply to sandisk. very disappointed in this drive. bought 2 of them and they do not write any faster than the 2.0 does. in fact, one of them was even slower than my 2.0 drives. and, yes, i had them in a usb 3.0 connector on my computer. I kept trying to write files to one of them and then tried the other. files would not write any faster than 15 - 18 mbs. very disappointing. last time I ever buy sandisk. these drives suck. for the list price you would think they would be better, guess that is why they were on sale for so cheap because that's what they are, cheap.
16 out of 20 found this review helpful.
Good price price for the amount of storage
Posted by: whrfl2 from: on
I got this on sale so the price was "right". This product has functioned without problems. However, write times are slow for a USB 3.0 Flash Drive. San Disk claims speeds of "up to 100 MB/sec" and "up to ten times faster than standard USB 2.0 drives". I tested this drive and a USB 2.0 drive using the same USB 3.0 port and same 3.72 GB of family photo and video files. This drive copied the files at an average 5.6 MB/sec and never exceeded 5.9. The USB 2.0 drive wrote the same 3.72 GB of files at an average 6.1 MB/sec. The computer was idle during both trials.
8 out of 8 found this review helpful.
Posted by: AverageGuy38 from: Dania on
My hardware was failing on my laptop so I had very limited time to get everything off before permanent shutdown. I was able to transfer nearly everything in less than a half hour and since the capacity is so large! I would recommended this product and I will never need to buy another flash drive!
8 out of 8 found this review helpful.
Good USB drive, poor key chain design
Posted by: OUMark from: Oklahoma City, OK on
I purchased this USB drive to get large capacity, a low price, and a keychain design. The drive works fine, but the key chain portion forces the drive out of the casing when it is in my pocket. The ring pushes on the mechanism that pushes the drive out. I'm worried that it will cause eventual damage to the data. Once I can find a better design, I'll probably be transferring it over.
8 out of 9 found this review helpful.
Great USB Drive
Posted by: ErikSTLMO from: on
I purchased this when it was on sale for under $100 and I have gotten several uses out of it including using it as an image backup and bootable flash drive for doing a few hard drive swaps on my laptops. It is very fast when using USB 3.0. It was a good purchase.
8 out of 10 found this review helpful.
Nice large drive
Posted by: tnblkbear from: Worcester, MA on
i needed a large flash drive to move some files and this was a good sized drive for the money. It works very well, but sometimes the mechanism to slide the USB connector out of the case sticks. Otherwise, a good drive.
4 out of 4 found this review helpful.
Read times are great/Write are slower
Posted by: FastLaneTech from: Colorado Springs, CO on
Read speeds are nice an speedy. The write times however are rather slow compared to other USB 3.0 Thumb Drives I have. Storage size is great for the price.