USB Flash Drive 16Gb - Kingston DataTraveler SE9 G2 USB 3.0 Metal DTSE9G2 / 16Gb

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UPDATE: 26 OCT 2016
The new drive has run smoothly for over a year now. Perhaps it was a fluke that the first one failed in the months. I'm happy with it.
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UPDATE: 24 AUG 2015
The RMA process was relatively smooth. There is one things that every owner should do! Take a picture of the small numbering on the side of the drive. Kingston will want to know the serial number printed there, and those numbers rub off easy. After owning mine for three months, it was almost beyond reading. Take a picture or write down that number in case you need it.
I do have to remove another star due to the fact that the drive failed after three months. The good news is that Kingston offers a 5 year warranty on most of their flash drives.
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UPDATE: 5 AUG 2015
The drive has died. It takes every computer a long time to recognize the drive. Once that happens it shows up as a empty media drive, much the was that a memory card reader would. It is possible that the memory chip has come loose from the controller board. Starting the RMA process, will update.
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UPDATE: 28 JUNE 2015
This drive does get very hot under continuous load. Once it heats up it appears to have a duty cycle to prevent it from frying itself. In other words, it gets slower as it gets hotter. I've done some further testing while hot and with two different file formats (NTFS and exFAT). The speeds are roughly the same.
I do not recommend this drive as a bootable USB OS drive.
NTFS:
Sequential Read/Write : MB/s / MB/s
Random Read/Write 512KB : MB/s / MB/s
Random Read/Write 4KB (QD=1) : MB/s [ IOPS] / MB/s [ IOPS]
Random Read/Write 4KB (QD=32) : MB/s [ IOPS] / MB/s [ IOPS]
exFAT:
Sequential Read : MB/s / MB/s
Random Read 512KB : MB/s / MB/s
Random Read 4KB (QD=1) : MB/s [ IOPS] / MB/s [ IOPS]
Random Read 4KB (QD=32) : MB/s [ IOPS] / MB/s [ IOPS]
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This drive is small for it's capacity, much smaller that I expected. That's not bad. Though it does not have good USB speeds. Here is the test results:
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CrystalDiskMark x64 (C) 2007-2013 hiyohiyo
Crystal Dew World :
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read/Write: MB/s / MB/s
Random Read/Write512KB : MB/s / MB/s
Random Read/Write4KB (QD=1) : MB/s [ IOPS] / MB/s [ IOPS]
Random Read/Write4KB (QD=32) : MB/s [ IOPS] / MB/s [ IOPS]
Test : 1000 MB [E: ( GB)] (x5)
Date : 2015/05/14 6:36:12
OS : Windows Pro [ Build 9600] (x64)
Let's compare this to the SanDisk Extreme, which has an advertised speed of "Up to 190MB/s".

-----------------------------------------------------------------------
CrystalDiskMark x64 (C) 2007-2013 hiyohiyo
Crystal Dew World :
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read/Write: MB/s / MB/s
Random Read/Write512KB : MB/s / MB/s
Random Read/Write4KB (QD=1) : MB/s [ IOPS] / MB/s [ IOPS]
Random Read/Write4KB (QD=32) : MB/s [ IOPS] / MB/s [ IOPS]
Test : 1000 MB [E: ( GB)] (x5)
Date : 2015/03/29 16:48:59
OS : Windows Pro [ Build 9600] (x64)
At it's fastest, it's has the speed of the SanDisk, and the slowest it's the speed. The SanDisk is between 2x to 1000x faster, depending on the application.
The Kingston has a good price for a good capacity, just bad speed. My major reason for purchasing this instead of another SanDisk Extreme was this is made of metal, and the SanDisk's break on my key-chain after a year of use.
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I have four of these that I use for various purposes. I'm an IT professional, so I have used all manner of USB drives over the years, These units have proven to be very reliable, and the read/write speeds are certainly adequate for everyday use. I have one with various programs and utilities, another with some Windows disk images that I use on our corporate PCs, one that I use for general temporary back-up and transfer of data between PCs in the office, and another for personal use that contains media files and other items.
So far I have yet to have one fail, or fail to be recognized by any computer. There form allows for easy and secure attachment to a key chain, and this attachment method is much more durable and secure than other "keychain" USB drives I have used.