Customer Ratings & Reviews

All plastic casing overheats and melts. Kill switch in the drive will let it be unwritable. Dealing with SanDisk warranty is a long, drawn out, burden.

Do not format to play music. May be good for backing up computer files.

Dumpster quality, flimsy plastic throughout. Lasted for 1 day as it died from one transfer. PNY makes a better quality competitor for same price

The SanDisk - Ultra Fit 128GB Flash Drive is TINY! It's called UltraFit because it's barely sticks out from your laptop so you can slip your laptop into your bag and you don't have to remove it. Try doing that with a standard USB flash drive. It's not the kind of drive you want to carry in your pocket as you will lose it. It's made to be additional storage for your notebook rather than a drive to carry spare files in. Yes you obviously can copy files to it and use it to transfer the files to another computer but when you pull it out of your notebook get a good grip on it or you might fling it across the room as you pull it out. It has a small loop on it that you can attach a small strap or even hang it on a chain if you really want to. The drive is pretty fast as it does have a USB 3.1 interface.It says on the package that the drive has a read speed of up to 130 Mb per second and write speed is lower based on the host device. I transferred 190 files (34.8Gb) to the drive in 26.30 minutes and then read from the drive back to the computer in 15:21 minutes. Not bad for such a large amount of files but remember your speed will vary depending on your computer and operating system. They include the software for password protecting the drive using 128bit encryption for Windows and a link for downloading the software for the Mac. They also include a free one year subscription for SanDisk's Rescue Pro should your files get corrupted and they give you one free year of online file storage as well. You really can't go wrong with SanDisk drives, I have been using them for years and they have always worked fine.

This flash drive is very good. The size of it makes it very useful across various applications. At this size it will not get bumped and damaged (that happened to me years ago). Being a usb flash drive it gets recognized by my laptop very quickly and the speed to which it accepts data transfers is very fast. It has the usb 3.1 compatibility and it is backwards compatible too. Impressed with the amount of data I can store. Scan Disk is a great brand. You cannot go wrong here. Very well made too.

Died in a few weeks. Do not recommend. Cannot write to, or erase the drive.

Bought this for recoding dashcam on Tesla and it stopped working within six months. I have huge reliability with it. Cannot be trusted with data.

Literally came dead on arrival. Couldn’t even use it one time

Worked fine up until it didn't. Inaccessible after 2 weeks with very little usage.

Have copied over multiple video files to this guy and consistently get 40 MBs to 50 MBs sustained writes to it when copying over 2 GB + video files. I have used it on my Windows 10 PC then popped it into my Chrome OS laptop to watch the movies. Just make sure it is formatted with a file system accessible by Chrome OS. Easiest way to ensure is to just pop into the Chrome laptop and let it format the drive then pop into your Windows PC if you need to copy over files. I also have a USB C adapter for my phone to be able to access the drive from my phone to stream movies to the entertainment center in my wife's Honda Odyssey to keep the kids at bay on long trips in the car. Overall very happy with this thumbdrive especially due to its compact size and storage capacity. I would recommend for anyone looking for a lot of storage space with a small footprint to not stick out far from a PC or laptop.

Junk. Failed upon opening. Would not recommend to anyone.

Not 128 GB like advertised. Mine was only 32 GB.

This flash drive melted in the USB port and got stuck.

do not buy its cheap and not durable at all. write speeds are like 15x to 25x, total waste and ripoff.

Gets really really really really really really really really really really really hot! Unbelievably hot when plugged in to a usb port! Way too hot to remove it unless you turn the computer off and let it sit for a bit.

Very tiny. Hard to use. Hard to find. Not as expected.

No need to post data speed transfer rates; the Ultra Fit delivers as promised. My first try was with my desktop equipped with SSD drives & USB 3; I was more than pleased with the performance. Then tried my SSD equipped laptop; no issue there. No lag in either machine recognizing & connecting the drive. Job done. What I question is the minute size of the Ultra-Fit. Depending on the form factor of the slot, there might not be enough surface left on the exterior to get a comfortable grip when retrieving it, especially for someone like myself with larger than average fumble fingers. And given its size, it begs to be tagged to a ring or keychain lest it gets lost or misplaced. I'm all for miniaturization, but have to say I'd prefer a few more mm's for a contact patch. Actually, my favorite thumb drive nowadays is a reversible USB + C that works with my phone. I imagine there are those that would prefer the tiny size in certain situations, I've had 2 inch drives protruding from their ports; on one occasion I knocked it out of my desktop with my knee, one other time the dog walking by the laptop knocked it sideways. I get the sales pitch - size is great for tablets, laptops, etc. So, whatever works for you - if you like compact, this is for you - no complaints on performance. I noted & passed on the Cloud Storage offer. Who isn't offering online storage nowadays - Google Drives, One Drive, PC manufacturers; etc. Do we really need another cloud service & password to manage? Life is too complicated already! Once again, maybe it'll cater to someone's need out there; just not mine. So should I check off recommended to a friend? Well, yeah, it works great and has good value for the size; if i think tiny is his schtick, sure, recommended. If he's fumble fingered like me, that's be a no!

SanDisk is a reliable manufacturer and I seldom have any issues with their products. This flash drive is the small form factor and fits snugly on the side of a laptop without sticking out. This is a new design with a "grab tab" that makes it easier to pull out of the USB slot when needed, but seems a little on the flimsy side due to all plastic construction. As long as the drive is not being pushed in and pulled out too vigorously, the plastic construction should not be a problem. The drive does seem to heat up a good bit during file transfers (most flash drives do this), so the plastic housing may or may not hold up well over long-term use. Maybe I'm looking for a problem that does not exist, but other reviews have mentioned the same concern. File transfer speed for USB 3.1 is quick as advertised - so no problems there. SanDisk includes a program to encrypt your flash drive for security if needed. The drive also comes with software that enables a "Flashback" feature that can be used to keep a cloud-based copy of the flash drive which automatically updates when plugging in the drive on any computer with the software installed. I found the initial file synchronization to be exceedingly slow, and suggest that the first backup on any computer be allowed to run overnight to ensure that the files are completely synchronized. If your use is smaller files such as documents or pictures, then the cloud synchronization may complete more quickly. Personally, I got a little frustrated by how long the synchronization took with a relatively small collection of TV and movie files. If you are carrying around a set of documents, term papers, or research on the flash drive to use on different computers during the day, then the cloud backup may be helpful in case you lose the flash drive, damage it, or forget to take it out of a computer. In that situation, you would be able to get to your files from the cloud if you don't have the flash drive in your possession. I mention this because I have had several friends come to me with flash drives that were damaged asking if I could recover their files, and the drives were beyond repair. Each time their flash drive had "only copies" of their documents (didn't have any type of backup) so they were up the creek. If they had a cloud backup of their flash drive that worked automatically on their computer(s), then they would have been OK. As it was, they lost a lot of work and learned a hard lesson about keeping backups of their valuable files. Note that the drive is formatted FAT32 formatted, so using it for large video or multimedia files over 4GB will require a NTSF re-format. Overall this flash drive does the job, is a good compact design, and comes from a reliable manufacturer.

Got it at a good price from BB on sale, but it feels really frail.

Showed up, and won't initialize on either Mac or PC.