
I have a small 1TB flash drive. I connected it to my Mac Pro via USB 3 and was only able to transfer data at 62.1 MB/s (write speed) and 151.9 MB/s (read speed). I got almost the same result on my new Macbook Pro with (Thunderbolt) with USB 3. For comparison, my very old 128GB USB stick has a write speed of 84.2MB/s and a read speed of 132.7MB/s. My WD My Passport 2TB SSD (USB 3) achieved 919.5 MB/s writing and 898.6 MB/s reading via USB 3.

Samsung BAR Plus 128GB - High-Speed USB 3.1 Flash Drive Titan Gray (MUF-128BE4/AM)
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Compact and Convenient: SanDisk Cruzer Fit USB 32GB Flash Drive (SDCZ33-032G-A11)
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32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
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Kingston DataTraveler SE9 32GB USB 2.0 Flash Drive for Reliable Data Storage (DTSE9H/32GBZ)
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18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
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π Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
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Game console Microsoft Xbox One X 1000 GB HDD, black
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2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review