I took a flash drive to replace the old slow one and not very big. I use it through an adapter to Type-C. I was very pleased with the speed - the files fly in quickly, and are downloaded instantly. For a 2.2 GB file, my speed was: 60 MB / s when transferring to a USB flash drive and 360 MB / s when transferring a file from a USB flash drive.
Transcend JetFlash Flash Drive TS16GJF790K
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18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
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2 TB External HDD Western Digital WD Elements Portable (WDBU), USB 3.0, black
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