TEST: SanDisk Extreme PRO mit USB4 2TB external SSD

Technical data
Image
Manufacturer	SanDisk
Model number	SDSSDE82-2T00-G25
Storage capacity	2048 GB (1863 GiB)
pSLC-Cache	>400 GB approx.
Read speed	3800 MB/s
Write speed	3700 MB/s
Interface	USB 4.0 Gen 3x2 (40 Gbit/s)
Connection	USB Typ C
Size (LxWxH)	140 x 68,7 x 12 mm
Weight	162 gram
Price	ca. 540 AUD (= 0,26 $ / GB)
Paid link	Buy on Amazon

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Compared to the top performer*

Read speed

92 %

Write speed

100 %

*) 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 2478 points was achieved.

AS SSD	Read:	Write:
Seq in megabytes per second	3307,71 MB/s	3153,65 MB/s
4K in megabytes per second	49,73 MB/s	18,36 MB/s
4K-64Thrd in megabytes per second	743,73 MB/s	440,54 MB/s
Access time in milliseconds	0,042 ms	1,373 ms
Score	1124	774
Total score	2478

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 February 09, 2026 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	1156,47 MB/s	1,99 s
Program many small files	76,24 MB/s	92,33 s
Game small and large files	358,22 MB/s	19,28 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 3800MB/s and 3700MB/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	3717,23	3703,80
SEQ1M Q1T1	2930,31	2094,46
RND4K Q32T16	728,65	451,52
RND4K Q1T1	56,39	19,40

HD Tune Pro Endurance test

A long-term test was performed here to make full use of the memory capacity. You can see when a cache is full and the writing performance decreases. A test file of 400 GB was written to the medium. The exact cache size could not be determined, because the test file did not exhaust the cache (brought it to the limit).The average read speed was 3365 MB/s and the average write speed was 3172 MB/s.

ATTO Disk Benchmark

Here, a 256 MB file is written several times to the SanDisk external SSD . The I/O block size varies (from 512 bytes to 64 megabytes). The larger the blocks, the faster they can be written and read.

SSD-Z Benchmark

Similar to HD Tune, a 500 MB file is written to the SanDisk external SSD here. is written. The transfer data is displayed. The more constant the line, the better.

The benchmark test was performed on February 09, 2026.
Information about the test system can be found at the bottom of the home page.
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