Kingston DataTraveler Kyson USB Flash Drive - 128GB

There is about 1GB to 1.5GB that writes at 90MB/s, the rest only writes at 4-6MB/s. The read speeds are above 200MB/s as advertised. There is about 1GB to 1.5GB that writes at 90MB/s, the rest only writes at 4-6MB/s. The read speeds are above 200MB/s as advertised.

The only reason I bought this was because it claimed the fastest write speed advertised of any standard USB-A flash drive: 60MBps write speed.
Real world speed turned out to be 20 - 30 MBps while copying a single 3GB file.
An everyday flash drive such as the DataTraveler G4 achieves 16 - 26 MBps
So this is only 15 - 25% better. The only reason I bought this was because it claimed the fastest write speed advertised of any standard USB-A flash drive: 60MBps write speed.
Real world speed turned out to be 20 - 30 MBps while copying a single 3GB file.
An everyday flash drive such as the DataTraveler G4 achieves 16 - 26 MBps
So this is only 15 - 25% better.

Speeds are consistently around 115MB/s for the first 1GB and then it drops to a very jerky 30MB/s for the rest of the file.
Note that this is preformatted as FAT32, so there is 4GB file limit. You'll need to reformat this to NTFS or exFAT before you start transferring files if you might find a bunch of them not transferring over.

Build quality is pretty nice being all metal apart from the plastic keyring loop. Would have been nice if that was metal too though as that part of it feels exceptionally flimsy. Speeds are consistently around 115MB/s for the first 1GB and then it drops to a very jerky 30MB/s for the rest of the file.
Note that this is preformatted as FAT32, so there is 4GB file limit. You'll need to reformat this to NTFS or exFAT before you start transferring files if you might find a bunch of them not transferring over.

Build quality is pretty nice being all metal apart from the plastic keyring loop. Would have been nice if that was metal too though as that part of it feels exceptionally flimsy.

I am not an expert in USB drives, but found this drive to be sufficiently fast and a good price considering the spec level. Another reviewer commented that it wasn't as fast as advertised but I'm not too sure about that. It came in FAT32 format which was useful for me because of what I was using it for. Perhaps people looking to store over 4gb files should be aware they may have to do some simple formatting before using this drive. I'm no expert so I could be wrong about that. Overall, would recommend. I am not an expert in USB drives, but found this drive to be sufficiently fast and a good price considering the spec level. Another reviewer commented that it wasn't as fast as advertised but I'm not too sure about that. It came in FAT32 format which was useful for me because of what I was using it for. Perhaps people looking to store over 4gb files should be aware they may have to do some simple formatting before using this drive. I'm no expert so I could be wrong about that. Overall, would recommend.

I've had one of these for about a year and a half now. It lives on my keychain and it's still working to this day despite all the abuse it gets. The speeds are fine for what I need it for, and it can be a little difficult to plug it into certain USB ports. But it comes in clutch whenever I need to flash a Linux .iso or transfer some files from one PC to another. I've had one of these for about a year and a half now. It lives on my keychain and it's still working to this day despite all the abuse it gets. The speeds are fine for what I need it for, and it can be a little difficult to plug it into certain USB ports. But it comes in clutch whenever I need to flash a Linux .iso or transfer some files from one PC to another.

By: jfeekery 05/06/26

Works as should, I was expecting a milled metal casing, but it's just a thin sheet of metal bended to the shape of a usb.
To sum it up
Pros
Does it have 64gb? No, I think has around 60gb but thats normal in any storage device. Good price
Cons
Casing-feels cheap, not a full metal block case just really thin sheet of metal wrapped around it. Not my cup of tea

Would I recommend this product? I mean if u just want a storage device yea great, and usbs r cheap these days anyways. If u also want a usb block metal case (which in my opinion looks really nice) then no Works as should, I was expecting a milled metal casing, but it's just a thin sheet of metal bended to the shape of a usb.
To sum it up
Pros
Does it have 64gb? No, I think has around 60gb but thats normal in any storage device. Good price
Cons
Casing-feels cheap, not a full metal block case just really thin sheet of metal wrapped around it. Not my cup of tea

Would I recommend this product? I mean if u just want a storage device yea great, and usbs r cheap these days anyways. If u also want a usb block metal case (which in my opinion looks really nice) then no

The default partition for the 64 GB is only 32 GB, meaning when I nearly filled it, I realised I had to reformat and repartition it completely. Considering the nature of its content, I was worried about my work being corrupted by doing so. It should be set up correctly by default. Apart from that, it has otherwise been a good drive and most importantly, durable. Most of my other USBs are plastic and end up breaking in my bag or keychain The default partition for the 64 GB is only 32 GB, meaning when I nearly filled it, I realised I had to reformat and repartition it completely. Considering the nature of its content, I was worried about my work being corrupted by doing so. It should be set up correctly by default. Apart from that, it has otherwise been a good drive and most importantly, durable. Most of my other USBs are plastic and end up breaking in my bag or keychain

This drive is tiny, perfect to go unnoticed on your keys. This drive is tiny, perfect to go unnoticed on your keys.

Got it on sale at a great price. I Use it in the car to play music which it does well. The write speed isn't super fast, it takes a while to copy files to but I don't have a problem with that Got it on sale at a great price. I Use it in the car to play music which it does well. The write speed isn't super fast, it takes a while to copy files to but I don't have a problem with that

I have been using Kingston flash drives since the early 2000s, and they are fast, sturdy, and reliable.

Nothing different from this one: fast, sturdy, and reliable. You cannot go wrong.

Also, remember that flash drives are transport media, not storage media.
So, do not use flash drives to store files or make backups. ;-) I have been using Kingston flash drives since the early 2000s, and they are fast, sturdy, and reliable.

Nothing different from this one: fast, sturdy, and reliable. You cannot go wrong.

Also, remember that flash drives are transport media, not storage media.
So, do not use flash drives to store files or make backups. ;-)

Fast, large, portable—and cheap.
That was for the first couple months.

Drive is 8GB full and I get bad write on CrystalDiskMark. Recommened the 128gb or higher versions, or the Kingston DataTraveler SE9 G3. Fast, large, portable—and cheap.
That was for the first couple months.

Drive is 8GB full and I get bad write on CrystalDiskMark. Recommened the 128gb or higher versions, or the Kingston DataTraveler SE9 G3.

Works as advertised. Works as advertised.