TEST: SSK SD300 128GB USB flash drive

Technical data
Image
Manufacturer	SSK
Model number	SSK-SD300-128GB
Storage capacity	128 GB (119 GiB)
pSLC-Cache	46 GB approx.
Read speed	550 MB/s
Write speed	500 MB/s
Connection	USB Typ A
Price	ca. 19 AUD (= 0,15 $ / GB)
Paid link	Buy on Amazon

Compare Product

Compared to the top performer*

Read speed

47 %

Write speed

75 %

*) 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 511 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	480,36 MB/s	486,35 MB/s
4K in megabytes per second	26,53 MB/s	57,03 MB/s
4K-64Thrd in megabytes per second	82,83 MB/s	155,45 MB/s
Access time in milliseconds	0,066 ms	0,138 ms
Score	157	261
Total score	511

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 April 29, 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	378,29 MB/s	2,84 s
Program many small files	196,46 MB/s	7,16 s
Game small and large files	327,56 MB/s	4,22 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 550MB/s and 500MB/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	511,54	515,76
SEQ1M Q1T1	511,40	495,97
RND4K Q32T16	136,08	176,62
RND4K Q1T1	37,52	60,63