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

Excelente precio, rapida la entrega. Es un obsequio para mis estudiantes.

Love these had enough to hand out to family with grand babies pictures and my daughters pictures on and still had memory left over for them to add their own pictures on

I am using these to copy family photos and give them to my relatives!

Bought these to use with my embroidery machines. Great buy!

The USB is not firmly set in some casings, making them unusable unless youre willing to try to glue it. Have purchased 4 times and at least 2 of every box had to be glued.

I ordered 2 boxes of 10 just over a year ago. Every single one was excellent! No bad ones, very reliable, steady transfer speeds, burst data rate is really good, large data transfer is very good, Multipleto large amounts of small data file transfers is little to be more desired but not unreasonable for the cost per drive. I used many for Windows 10 installation flash drives and gave to computer sale clients, gave to clients for quick data transfers. I just order my third set of 10 and will use this next set for some macOS install Flash drives. I will continue to buy this product over and over. I actually leave one in my back pocket and sit on it all the time, this thing has not been crushed by my fat A**, lol. Still works today!

Worked fine

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.

UPDATE: Found out the things seem to work a whole lot better if you re-format them as exfat (extended FAT.) Maybe some of the people who own USB flash drives from other companies got them formatted as exfat and didnt know? Anyway, I need these as I said below, and didnt realize they were formatted as FAT32; once I re-formatted them they perform as expected. --Original review-- 761 Kb/Sec copying 15,000 files from an 8.1 GB ISO. Bought these because the Kootion 8GB were too small (have been reading that the Kootion 32GB are slow and also unreliable.) Buyer beware! Thought these would be helpful, but NOT if they are so slow!!!!!! Maybe the company would consider fixing this and sending me some that actually perform better? ;)

You will be sorry if you buy from this company. Over half of the USBs will not format correctly and have to be thrown away. Huge waste of time and expense. DO NOT BUY!!!!!