TEST: Netac UM3 128GB USB flash drive

Technical data
Image
Manufacturer	Netac
Model number	Netac-UM3-128GB
Storage capacity	128 GB (117 GiB)
Read speed	120 MB/s
Write speed	not specified
Connection	USB Typ A
Price	ca. 13 AUD (= 0,10 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

11 %

Write speed

9 %

*) 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 24 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	37,51 MB/s	28,75 MB/s
4K in megabytes per second	4,86 MB/s	0,13 MB/s
4K-64Thrd in megabytes per second	4,08 MB/s	0,18 MB/s
Access time in milliseconds	1,491 ms	28,369 ms
Score	13	3
Total score	24

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 July 19, 2024 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	75,08 MB/s	14,30 s
Program many small files	10,46 MB/s	134,52 s
Game small and large files	31,72 MB/s	43,54 s

Compression Performance Test

Here, the writing and reading speed of the the Netac USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 120MB/s and 0MB/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	116,81	59,96
SEQ1M Q1T1	117,07	70,97
RND4K Q32T16	11,41	0,19
RND4K Q1T1	6,13	0,33