Summary: I have lost all of my family pictures and videos from this flash drive. I even spent an hour on the phone with Sandisk and they could not fix the issue with their drive. I have bought several other brands of flash drives and have never had an issue. Had I known that Sandisk made such a cheap product I would have never purchased this brand. I am so upset to have lost so many pictures and videos! BEWARE! You do not want to be in my shoes!!!
Summary: The flash drives work flawlessly for me. I don't understand why so many others complaining about the product. For those of you who has issue with the product, please format your drive first before you use it. It will solve the problem. Sandisk makes the best flash memories. One last thing you should buy together with this product is a flash drive carrying case that can attach to your key ring.
Summary: On two separate computers all three USB sticks are never visible and will even hang windows explorer if you try to look for the drive. All three failing indicate a bad product design rather than a one-off defective product.
Summary: I bought two of the SanDisk Ultra USB Flash Drive 32GB/2.0 from Costco. Both popped out of the package, into my USB port on my Windows 8 system and voilla. I don't use the secure access file protection so I can't review that. I have lost files on two external hard drives in the past 5 yrs. I will only use USB Flash Drives now. And this one makes me happy so far. I am going to buy more.
Summary: I am a professional photographer, so I am constantly using these drives for transferring data among computers, and I'm talking super large files. I've never had one issue with these flash drives and am 100% happy with them. So not sure why other reviewer had problems, but maybe just a fluke.
Cons: Slow, very very slow. I was getting about 2.5mb/sec. This was just transferring a mixed assortment of files. Speed did not seem to vary much over the time period. Have not tested with software or tried on different machines, but older crucial flash drive is faster than this.