TEST: Mushkin Impact 256GB USB flash drive

Technical data
Image
Manufacturer	Mushkin
Model number	MKNUFDIM256GB
Storage capacity	256 GB (238 GiB)
Read speed	400 MB/s
Write speed	310 MB/s
Connection	USB Typ A
Price	ca. 54 AUD (= 0,21 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

40 %

Write speed

25 %

*) 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 213 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	415,82 MB/s	241,54 MB/s
4K in megabytes per second	24,83 MB/s	38,82 MB/s
4K-64Thrd in megabytes per second	16,32 MB/s	22,41 MB/s
Access time in milliseconds	0,232 ms	0,216 ms
Score	83	85
Total score	213

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 January 12, 2021 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	204,02 MB/s	5,26 s
Program many small files	152,14 MB/s	9,25 s
Game small and large files	189,85 MB/s	7,27 s

Compression Performance Test

Here, the writing and reading speed of the the Mushkin USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 400MB/s and 310MB/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	440,59	254,61
SEQ1M Q1T1	423,22	244,59
RND4K Q32T16	218,95	139,36
RND4K Q1T1	26,13	41,10