We also tested the time it took to import and export a mix of files from/to the Disk Drive into various programs.
The programmes we used were:
Microsoft Office (Word, Excel and PowerPoint)
Adobe Acrobat Reader
Adobe Photoshop
VideoPad
Audacity
We also timed moving a Win 10 backup file to and from the drive.
SanDisk's Desk Drive performs well in the load / save tests. It takes just 13 seconds to import a 60MB csv file containing 500,000 records and 9 seconds to export the file to an SSD. A Windows 10 backup (100GB) was copied to the drive in 3 minutes while exporting a 2.6GB 4K video from the app to the drive took 89 seconds.