TEST: SSK SFD020 64GB USB flash drive

Technical data
Image
Manufacturer	SSK
Model number	X001QMQSRD
Storage capacity	64 GB (58 GiB)
Read speed	120 MB/s
Write speed	100 MB/s
Connection	USB Typ A
Price	ca. 14 AUD (= 0,22 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

28 %

Write speed

18 %

*) 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 40 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	111,59 MB/s	49,98 MB/s
4K in megabytes per second	5,58 MB/s	0,66 MB/s
4K-64Thrd in megabytes per second	6,17 MB/s	0,73 MB/s
Access time in milliseconds	1,024 ms	6,665 ms
Score	23	6
Total score	40

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 May 28, 2023 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	41,15 MB/s	26,10 s
Program many small files	11,55 MB/s	121,78 s
Game small and large files	26,72 MB/s	51,69 s

Compression Performance Test

Here, the writing and reading speed of the the SSK USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 120MB/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	118,19	36,01
SEQ1M Q1T1	121,56	65,25
RND4K Q32T16	9,20	1,95
RND4K Q1T1	7,76	0,84