Kingston 128GB DataTraveler 100 G3 USB 3.0 100MB/s Read, 10MB/s Write (DT100G3/128GB)

These drives are unreliable. I bought two to supplement my Sandisk Extreme drives which are pricey. I just wanted to have a couple of drives for booting computers - low writes, lots of reads. They are so poorly implemented that they cant even handle that! Yes, the performance is mediocre - not what I bought them for. The problem seems to be that a decent fraction of the time they will disconnect during heavy reading or writing - which means file corruption and serious problems. Other times, they arent recognized at all on some systems. The problem seems to be with USB 3 mode, but I think they sometimes have issues in any mode. I had a problem getting modern macbook pros (USB 3) to boot off of them at all (where the identical image on a sandisk extreme worked 100%). I have had problems on an Acer with USB 3 ports as well. Ill plug it in and wait, and nothing happens. In linux ill check the logs, and sometimes theres nothing at all, other times Ill get a bunch of errors in dmesg. I have never had this kind of problem before. Ill plug it into a legacy USB 2 port, and poof, it mounts! After 30 seconds, it fails to mount the device. I just plugged one in my USB3 port now, heres what I got: [13745.997136] usb 4-2: new SuperSpeed USB device number 4 using xhci_hcd [13746.029889] usb 4-2: New USB device found, idVendor=0951, idProduct=1666 [13746.029896] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [13746.029900] usb 4-2: Product: DataTraveler 3.0 [13746.029903] usb 4-2: Manufacturer: Kingston [13746.029906] usb 4-2: SerialNumber: 60A44C3FAD9EBE91698E0092 [13746.030551] usb-storage 4-2:1.0: USB Mass Storage device detected [13746.030716] scsi8 : usb-storage 4-2:1.0 [13767.958162] usb 4-2: reset SuperSpeed USB device number 4 using xhci_hcd [13772.976227] usb 4-2: device descriptor read/8, error -110 [13773.080179] usb 4-2: reset SuperSpeed USB device number 4 using xhci_hcd [13778.098299] usb 4-2: device descriptor read/8, error -110 [13778.258675] usb 4-2: USB disconnect, device number 4 [13778.259476] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802ea172300 [13778.259487] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called with disabled ep ffff8802ea172348 Same device, in the USB 2 port and it mounts in 2 seconds.

I can always count on Kingston flash drives. Very reliable. Great price. Its the only brand Ill buy.

I bought this 64GB USB drive to back-up my back-up of photos since you can never have too many back-ups of those precious pics... so, in terms of value and capacity, it is great. However, it is a little larger than typical USBs and it wouldnt fit next to my wireless mouse receiver, or next to the input from my external HD when plugged in, so I ended up buying a USB C to USB receiver (see the second pic) so that I could use the USB C drive on my laptop (my laptop has only 2 USB As and 1 USB C). Im transferring pics as I type this from my external HD to the USB at a rate of about 15 MB/s so backing up 50GB of pics is going to take hours, but it works, its cheap and it gives me some peace of mind. Im deducting 1 star because the case is a bit large, but overall a great value. Just keep in mind that it could be a tight fit if most of your USB ports are already in use. So far so good and I would buy it again.

I use this drive to relocate files that are larger than 4 GB so I Changed storage to the NTFS file system. Sometimes it copies slow but this happens based on the file type and size. The speed is not a problem for me.

Kingston always does things the way they should, the best.

The drive its self seems fine at the moment. but the packing was opened.

So glad I bought this. Big storage and very fast loading and using. Thank you!

I wish I would have read the comments as I had only considered the price and the capacity. This drive is very slow, so slow that I had to verify the capacity with H2testw to verify that this wasnt an old counterfeit item. The test wrote to the drive at 30Mb/s or about 3 times faster than the USB 1.1 standard (about 6% of USB 2.0). It took OVER TWO HOURS to write 64MB to this drive, and the test passed.

Unfortunately, I have to agree with the reviews that state this drive is just too slow to write. The text USB 3.0 speeds in the product description must be considered false advertising. Im getting between 2 and 8 MB per second in a USB3 port. That doesnt even approach a USB2 equivalent speed. Its not like this is my only flash drive; I know how quickly the data should be transferring with this hardware. (Surely Kingston didnt think we wouldnt notice...?) As others have shown with their metrics, this drive is just painfully slow. At least it was cheap, I guess. And eventually, it holds the data you put on it. So its semi-useful... as long as youre not waiting for it to finish writing before you can move on with your next task. Would not buy again.

Two thumbs up.