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utack

Member

Registered: 2014-10-20

Posts: 14

Kingston Datatraveler Ultimate write speed

TL;DR: skip if you don't know the flash drive on the picture below

I have had this "Kingston DataTraveler Ultimate 3.0" with 32GB for quite a while now (identifies as USB ID 0951:1697)

It was always painfully slow to write to it under Linux, all machines, all distros.
Recently it started being incredibly fast.
Question to the forum:
Did anyone else have the same experience with this flash drive.
I'd really like to know what changed, so it finally works at full speed
(Educational purposes only, I don't have any problem and don't need any help)

Thanks

Last edited by utack (2016-09-06 21:34:33)

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 19,774

Re: Kingston Datatraveler Ultimate write speed

it finally works at full speed

Poor choice of words.  In USB parlance, Full speed is defined  as12 Mbit/s.  Not to be confused with high speed (480 Mbit/s), SuperSpeed (5 Gbit/s) or SuperSpeed+ (10 Gbit/s)

Edit: I'm guessing that USB 3.0 is starting to become mature in the newer kernels. You had probably been running at high speed, the limit of USB 2.0

Last edited by ewaller (2016-09-06 21:43:02)

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utack

Member

Registered: 2014-10-20

Posts: 14

Re: Kingston Datatraveler Ultimate write speed

it finally works at full speed

Poor choice of words.  In USB parlance, Full speed is defined  as12 Mbit/s.

I was comparing it to full speed it can achieve, as seen in Benchmarks and on a Windows 7 System
Thanks for pointing it out though

I'm guessing that USB 3.0 is starting to become mature in the newer kernels. You had probably been running at high speed, the limit of USB 2.0

That reminds me I checked for it when I first got it
Looking at dmesg, it seems it is now detected as a SCSI device now:
"Attached SCSI removable disk"