I just bought 3 of them ... and it's extremely slow when i transfer data. and extremely slow when i open folder inside the flash drive.
1556100
I brought 1 and have no issues with it. The person that made me buy it uses it to downlaod movies onto and if there was a problem he would have definetly said something. When I open my movie folder it opens up right away, again no issues with speed or anything.
1556101
The first ones that I bought several months ago worked as advertised. The newest batch purchased about 4-6 weeks ago were very sluggish and some needed to be reformatted.
1556102
My flash drives crashed every time I tried to store multiple files on them. My only recourse was to reformat the drive. I did not have a problem with the speed of storing a file or opening it.
1556103
Right, Sometimes is slow transferring data, but I never felt that is slow when I open a Folder.
742059
Yeah but your better off getting a larger hard drive because of the amount of files you're trying to transfer. This USB is only 16-32 gb of memory and I'm pretty sure you're gonna want to move a lot more files than that.
1555558
I wrote a non-techie review of my 64g and 128g. I compared writing 37.3 gig of data - the San Disk disk took 5:55 minutes for the 64g and 5:50 for the 128g. The other 2 (not cheapies) took between 25 and 36 minites. All were done with the same source data on the same computer using the same USB3 port. They were all USB 3 drives. Not sure what the specs are, SanDisk has them on their website, but I can tell you it is faster than any of the others out there except maybe the Lexar and the price on those is much higher.
674034
I just got one of these to back up the data on my Win8 laptop. It's as slow as MUD. I connected an external hard drive to the SAME USB port, and it was FAR faster. Avoid at all cost.I'd suggest this as the best alternative (get the 64GB for $50 rather than the 32GB for $45): Mushkin Ventura Pro 64 GB Flash Drive. It is USB3 but works very well on USB2 (and it's fast there too). One Xbox 360 user said it works perfectly (read the comments). Here's the link: Mushkin Ventura Pro 64 GB Flash Drive - MKNUFDVP64GB (Black)
517758
Not sure I fully understand your question. The SanDisk Extreme USB 3.0 is a Flash Drive that plugs into and out of any USB port. If the port is 3.0, the transfer rate will be circa 10 X faster than a 2.0 Flash Drive. The Extreme model is the fastest. SanDisk sells an Ultra model too, found at Wally-World. And there is probably a Standard USB 3.0. The Extreme model writes at about 190MB/sec. All 3.0 Flash Drives are compatable with 2.0 USB ports on your computer.
1130939
It's a USB 3.0 hub; if you have two 3.0 devices, it will transfer data at 3.0 speed. If one of the devices is 2.0, then that will slow everything down to 2.0 speed.
809744
I have both the 256gb and the 1tb USB drives. So far I am quite impressed by the transfer speed and reliability of them. So much that I carry a great deal of information to include pictures and songs. So far neither one of them failed on me. You need to verify that the drive is a legitimate one by checking that on the USB port connector has the serial number engraved. I understand that there are some cheap ones on the market with a much lesser performance and capacity from what is described! I hope this may help!
2279410
I have the 256 model, same drive. I use it as a bootable backup drive. It works. It's a little sluggish compared to a firewire connection.
796908
I bought two of these devices and they both work well. It takes about a minute for the red light to change to blue when you turn it on. To open, I usually go to my computer, then I would choose drive with the removable flash drive. I am then able to open the folder with my information.I hope that this information is helpful to you.
1235900
The speeds were very close to the ones when my esata drive was connected direct. You will lose a little speed because of the different ways esata and usb 3.0 transfer data.
1733285
I plugged in a crappy USB 2.0 key to test this - an old Verbatim that I would swear is slower than a floppy drive. It didn't slow down the read/writes on my super speedy USB3 Patriot Magnum at all. So, no, USB 2 devices won't slow down USB 3 devices.
774620
Yes. A USB 3.0 flash drive will be faster than USB 2.0. Keep in mind however, that budget 3.0 flash drives are slower than more expensive 3.0 drives that have faster memory.
37651
The truth is... this device is a crap!After opened, i was copying from one disk to another using usb 3.0 and it drops copy 7 times... Like it switch it off and on! i dont know why, but i do not recommend at all! Sorry! Try startec models they have more good reviews than this
1931461
These drives are kind of strange. It transfers off the drive at high speed (~20 MByte/sec) but only writes at ~2 MByte. So I think it's USB 2.0 but the internal flash management chip on the drive must be pretty inefficient so it can't keep up with the comm. speed when it's doing write operations. Delete operations are also really slow.So overall I probably wouldn't recommend this product. I got them because they were cheap and I don't need high performance for what I'm using them for.
285315
I used it one time to safeguard some files. I took it out to access those files after 3 months and the flash drive is DEAD!!! Tried it on 3 computers, Nothing
1233833
I got about 300 MB/s, which is about half of the max speed but it was plenty fast. If you are connecting the USB 3 wire to an external USB 3 hard disk, and not doing hard disk intensive work on your main OS drive, I think you will get about the same rate of transfer speed while moving large files. Good luck!
1306706
I wouldn't recommend it for large file transfers. Very slow upload/download.