TEST: Kingston DataTraveler SE9 G3 256GB USB flash drive

Technical data
Image
Manufacturer	Kingston
Model number	DTSE9G3/256GB
Storage capacity	256 GB (231 GiB)
Read speed	220 MB/s
Write speed	100 MB/s
Connection	USB Typ A
Price	ca. 18 AUD (= 0,07 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

22 %

Write speed

9 %

*) Test result evaluated according to AS SSD Score within the same size.

AS SSD Benchmark

Standard performance test

The standard test was performed with a 1 GB file. A total score of 54 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	222,77 MB/s	71,10 MB/s
4K in megabytes per second	5,45 MB/s	0,26 MB/s
4K-64Thrd in megabytes per second	6,54 MB/s	0,25 MB/s
Access time in milliseconds	0,726 ms	14,831 ms
Score	34	8
Total score	54

Copy Performance Test

A common everyday situation is simulated here. Three test folders are created:

• ISO (folder with two large files)
• Program (folder with many small files)
• Game (folder with small and large files)

The three folders are copied using the Windows Copy command (the cache remains enabled). The practical test of July 26, 2024 shows the performance for simultaneous write and read operations. The lower the duration, the better the performance.

AS SSD Copy-Benchmark	Transfer rate:	Duration:
ISO two large files	30,26 MB/s	35,49 s
Program many small files	11,19 MB/s	125,77 s
Game small and large files	23,48 MB/s	58,82 s

Compression Performance Test

Here, the writing and reading speed of the the Kingston USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 220MB/s and 100MB/s respectively).

CrystalDiskMark Benchmark

Here, two sequential and two random performance tests are performed, similar to the ones performed on the AS SSD.

CDM	Read [MB/s]	Write [MB/s]
SEQ1M Q8T1	235,41	94,06
SEQ1M Q1T1	229,41	118,04
RND4K Q32T16	13,39	0,55
RND4K Q1T1	12,93	0,60