TEST: SanDisk Extreme PRO Portable SSD V2 1TB external SSD

Technical data
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Manufacturer	SanDisk
Model number	SDSSDE81-1T00-G25
Storage capacity	1024 GB (931 GiB)
pSLC-Cache	12 GB approx.
Read speed	2000 MB/s
Write speed	2000 MB/s
Interface	USB 3.2 Gen 2x2 (20 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	112 x 58 x 11.5 mm
Weight	79 gram
Price	ca. 125 AUD (= 0,12 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

56 %

Write speed

57 %

*) 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 1817 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	1846,20 MB/s	1918,11 MB/s
4K in megabytes per second	37,84 MB/s	72,76 MB/s
4K-64Thrd in megabytes per second	521,52 MB/s	413,93 MB/s
Access time in milliseconds	0,050 ms	0,248 ms
Score	744	679
Total score	1817

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 June 21, 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	935,03 MB/s	2,46 s
Program many small files	169,83 MB/s	41,45 s
Game small and large files	613,73 MB/s	11,26 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 2000MB/s and 2000MB/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	2060,19	2093,95
SEQ1M Q1T1	1244,88	1811,38
RND4K Q32T16	466,25	431,17
RND4K Q1T1	36,67	79,32