TEST: SSK SD500 1TB external SSD

Technical data
Image
Manufacturer	SSK
Model number	SD500-1TB
Storage capacity	1024 GB (932 GiB)
pSLC-Cache	24 GB approx.
Read speed	1050 MB/s
Write speed	1000 MB/s
Interface	USB 3.2 Gen 2x1 (10 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	‎68.6 x 37.6 x 12.4 mm
Weight	60 gram
Price	ca. 74 AUD (= 0,07 $ / 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 5 GB file. A total score of 1035 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1093,07 MB/s	1156,25 MB/s
4K in megabytes per second	24,66 MB/s	94,55 MB/s
4K-64Thrd in megabytes per second	252,49 MB/s	229,15 MB/s
Access time in milliseconds	0,068 ms	0,204 ms
Score	386	439
Total score	1035

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 22, 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	881,87 MB/s	2,61 s
Program many small files	163,89 MB/s	42,95 s
Game small and large files	583,91 MB/s	11,83 s

Compression Performance Test

Here, the writing and reading speed of the SSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 1050MB/s and 1000MB/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	1229,77	1237,23
SEQ1M Q1T1	757,13	1201,67
RND4K Q32T16	321,21	489,47
RND4K Q1T1	37,87	97,71