KOOTION 10 Pack 4GB Flash Drive 4gb USB 2.0 Flash Drives USB Drive Jump Drive Bulk Thumb Drive Swivel Memory Stick Black

Kootion 16 GB USB 3.0 Flash Drive 16gb Flash Drives 10pcs For the ones that are working...not bad, I like them. Pretty good generic little flash drives for the price. Out of the ten in the pack two of the drives failed to show any storage available, one refused to do anything at all (even light up) and two failed and fully corrupted/became unusable when formatting. -----Diagnostics + Chip info----- I used DISKPART to clean and format each one, FakeFlashTest and H2TESTW to verify actual storage and CrystalDiskMark to verify speeds. They each have exactly 15.357951 GB in MAX usable capacity when unpartitioned CrystalDiskMark results are as follows: [Read] Sequential 1MiB (Q= 8, T= 1): 143.088 MB/s [ 136.5 IOPS] < 58203.57 us> Sequential 1MiB (Q= 1, T= 1): 144.075 MB/s [ 137.4 IOPS] < 7268.93 us> Random 4KiB (Q= 32, T=16): 17.548 MB/s [ 4284.2 IOPS] <117249.22 us> Random 4KiB (Q= 1, T= 1): 11.249 MB/s [ 2746.3 IOPS] < 363.68 us> [Write] Sequential 1MiB (Q= 8, T= 1): 51.128 MB/s [ 48.8 IOPS] <135211.10 us> Sequential 1MiB (Q= 1, T= 1): 83.116 MB/s [ 79.3 IOPS] < 12406.85 us> Random 4KiB (Q= 32, T=16): 1.001 MB/s [ 244.4 IOPS] <326764.32 us> Random 4KiB (Q= 1, T= 1): 1.672 MB/s [ 408.2 IOPS] < 2398.55 us> Uses a SM3281 Drive Controller. Im unable to identify the flash memory chip. Protocol Version: USB 3.10 Current Speed: High Speed Max Current: 504mA USB Device ID: VID = 090C PID = 2000 Device Vendor/Manufacturer: SMI Corporation Device Name: USB DISK Device Revision: 1100

At this price I really didnt expect quality from a 10pack of USB 3.0 drives. I expected a few to be defective and poor performance on the rest. However, every single drive passed a badblocks write test with no errors at all. Running basic benchmark showed what I would consider very usable performance. Benchmark numbers can vary wildly based on on setting but this was a favorable comparison to the more expensive drives I had on hand. Assuming they dont degrade later Im pleasantly surprised.

Buena inversión y fácil de usar.

I use to use cd for my photo storage but these are easy to use and can hold many photos taken with my camera. Will purchase again!

Wonderfull!

I do a lot of recording of songs by year. These are perfect for me to put 125 or more songs on the drive for each year.

Didnt need large thumb-drives, but needed a bunch at a reasonable price. Needed to be good quality too, because theyre going to be stored away for posterity with tons of data by year. I like them so much Im going to get more.

I recorded my mother in laws funeral, video and 300 plus slid show, and had plenty of extra storage remaining

This served me well as I needed these to hand out to my customers after I uploaded their file

I absolutely love these. Not only was I able to get the color I wanted in the size I wanted at a reasonable price. It came packaged well and very professionally. I was expecting something thrown together. I was very impressed and pleased. I needed these so I could start offering them for my photo business and wasnt sure if people would want them. They loved them as do I! The packaging and the value for the price I will be ordering again! These are very nice and a good value too. I will be using this company again for my needs. Very impressed. UPDATE: I have since bought 4 more boxes and getting ready to order another! No issues with any of them.