TEST: Transcend JetFlash 910 256GB USB flash drive

Technical data
Image
Manufacturer	Transcend
Model number	TS256GJF910
Storage capacity	256 GB (233 GiB)
pSLC-Cache	11 GB approx.
Read speed	420 MB/s
Write speed	400 MB/s
Connection	USB Typ A
Price	ca. 66 AUD (= 0,26 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

33 %

Write speed

34 %

*) 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 203 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	337,97 MB/s	330,65 MB/s
4K in megabytes per second	16,44 MB/s	23,66 MB/s
4K-64Thrd in megabytes per second	21,12 MB/s	31,45 MB/s
Access time in milliseconds	0,107 ms	0,403 ms
Score	71	88
Total score	203

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 November 09, 2020 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	283,14 MB/s	3,79 s
Program many small files	145,77 MB/s	9,65 s
Game small and large files	198,13 MB/s	6,97 s

Compression Performance Test

Here, the writing and reading speed of the the Transcend USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 420MB/s and 400MB/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	358,24	348,95
SEQ1M Q1T1	350,71	345,06
RND4K Q32T16	35,81	35,12
RND4K Q1T1	24,45	25,78