SanDisk Professional PRO-G40 SSD 2TB External SSD Review

The PCMark 10 Data Drive Benchmark has been designed to test drives that are used for storing files rather than applications. You can also use this test with NAS drives, USB sticks, memory cards, and other external storage devices.
The Data Drive Benchmark uses 3 traces, running 3 passes with each trace.

Trace 1. Copying 339 JPEG files, 2.37 GB in total, into the target drive (write test).
Trace 2. Making a copy of the JPEG files (read-write test).
Trace 3. Copying the JPEG files to another drive (read test)

Here we show the total bandwidth performance for each of the individual traces.

The SanDisk Professional PRO-G40 handles the rigours of the PCMark 10 Data Drive Benchmark pretty well in both Thunderbolt 3 and USB 3.2 modes. It sits in the top five of the results charts for the three individual test traces. As far as the overall bandwidth result is concerned it's the third fastest drive using Thunderbolt 3 and sixth fastest in USB 3.2 Gen 2 mode.

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