TEST: SanDisk Extreme PRO 128GB USB flash drive

Technical data
Image
Manufacturer	SanDisk
Model number	SDCZ880-128G-G46
Storage capacity	128 GB (119 GiB)
pSLC-Cache	>100 GB approx.
Read speed	420 MB/s
Write speed	380 MB/s
Connection	USB Typ A
Price	ca. 37 AUD (= 0,29 $ / GB)
Paid link	Buy on Amazon

Compare Product

Compared to the top performer*

Read speed

40 %

Write speed

58 %

*) 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 192 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	409,55 MB/s	380,93 MB/s
4K in megabytes per second	11,28 MB/s	9,34 MB/s
4K-64Thrd in megabytes per second	11,63 MB/s	44,58 MB/s
Access time in milliseconds	0,690 ms	0,560 ms
Score	64	92
Total score	192

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 October 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	230,91 MB/s	4,65 s
Program many small files	126,84 MB/s	11,09 s
Game small and large files	235,44 MB/s	5,87 s

Compression Performance Test

Here, the writing and reading speed of the the SanDisk USB flash driveSSD is measured depending on the compressibility of the data (according to the manufacturer, these should be 420MB/s and 380MB/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	433,00	396,13
SEQ1M Q1T1	427,35	392,58
RND4K Q32T16	17,81	11,16
RND4K Q1T1	16,55	9,87