SanDisk Cruzer Ultra 16GB USB 3.0 Flash Drive SDCZ48-016G-U46 up to 100MB/s (Pack of 5)

Im a professional photographer and much of my work is delivered via USB-3 Thumb Drives. SanDisk is the most trusted brand in solid-state media and my go-to brand for USB drives. I have been using SanDisk Cruzer Ultra drives in 16, 32, and 64 gb sizes without a single failure for many years. You should know that a 16 GB Thumb drive does NOT provide 16 GB of data storage, I will never understand that is, but you are limited. Each drive has to reserve space for firmware and that drops your drive capacity, so purchase a drive that has a capacity far above what you actually need. Limited file size has nothing to do with the USB rated size, but is due to the formatting These Drives come Formatted to FAT32 that means a single file cannot be larger than 4GB as formatted. BUT YOU can re-format the drive with Windows. When you place the thumb drive in your usb-3 port on your computer, you can right-click the drive and select FORMAT, then instead of FAT32, Choose NTFS and you can then add large files to the drive. I do a lot of cinematic/video presentations and have had to re-format the drives for those larger movie files. I like these drives and the USB connection is retractable, BUT, it is still exposed to dust and debris that may be in your pocket, I highly recommend that you also purchase some sort of case to put your drive in when its not in use. I personally use the CaseLogic zippered cases for storage, mailing and transporting my valuable data-loaded SanDisk Flash Drives. I would definitely recommend them! They are the best combination of price, quality, and performance.

Transferred folders and files from my laptop

My set of 5 SanDisk Ultra USB 3.0 16 GB flash drives (SDCZ48-016G-U46 on the bar code) arrived with each of the 5 drives in an individual package (that could also be sold one package at a time). One of the drives was dead on arrival. When I plugged it in to the USB port and attempted to access it with Windows 10 File Explorer, the computer screen locked up and the only thing that unlocked it was removing the drive from the USB port. Even CTRL-ALT-DEL could not open anything, and the Windows 10 command to safely eject the drive would not work. I tried a couple more times with the same results. The other 4 drives worked correctly. Be advised that these drives come with extra software installed that can implement the SanDisk SecureAccess password system. If you dont need password protected access you can delete this extra software and regain some storage space.

My gramps passed and my sister, me and my cousins made a slideshow of his life. It turned out amazing and we put the end product on these. You’ll never go wrong with SanDisk

I like these for the price, but putting data on them is really slow.

good storage capacity for the money

good quality , used them for years

I bought these to transfer photos from one computer to another. They are security enabled so I had to set a password and interface through their program, a small setback as I prefer file manager. The worst issue however was that I lost my creation dates! Ended up using an older thumb drive which worked perfectly. All I can say is Read The Specs!!!

Ive used Sandisk USB drives for quite some time now, and theyve mostly been pretty dependable drives. With this batch that was sent to me, I did have one or two drives quit on me within the initial first use. However, this could be caused by my USB Hub that I was using. It also could have been the manufacturers fault, I dont know. However, the two or three that I really needed seem to be working pretty well, and deliver some pretty decent speeds. While it is a little disappointing that the ones I was hoping to have as backup didnt work out, the ones that I really needed seem to be working just fine. Plus, I did add an extra star because of my previous interactions with Sandisk.

I bought these to have a set of administrator images for various software packages that I manage for my company. For that purpose they work fine, read speeds seem to be good and the lanyard loop lets me keep all my drives together so I can find the one I need easily. The problem, as others have stated, is the write speed. At an average of 9-10MB/s it is painfully slow for a USB 3.0 device. Its not a deal killer for me since I am writing once and reading many times rather than constantly changing the files on the drives but for anyone using them for actual data transfer, look elsewhere for something that at least approaches the claimed speeds. Up to 100MB/s is seriously misleading when I have never seen one of these drives achieve anything better than 12MB/s for any length of time. And for those who may try to discredit my comments, the speeds Im seeing are consistent across over a dozen PCs of varying ages and specifications as well as transfers of many small files or a single large file. If i was using these for anything other than static storage I would have returned them immediately.