I had two Iomegas (my two oldest still work very well) and two Seagates (one broke about a year after purchase and had to be thrown out, the other still works fine, newer, higher capacity but slower than Iomega portable drives) USB 2.0. This is my first USB 3.0 portable drive and so far it's been excellent. It's faster than the rest, not only when plugged into a USB 3.0 port (as expected), but even when plugged into a USB 2.0 port.
18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review
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
53 Review
π Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review
π SAMSUNG T5 Portable SSD 2TB - High-Speed USB 3.1 External Solid State Drive, Black (MU-PA2T0B/AM)
40 Review
π΄ Renewed Samsung Portable SSD T7 500GB USB 3.2 External Solid State Drive Red
20 Review
SAMSUNG T7 Touch Portable SSD π½ 2TB: High-speed, Secure & Compact Solid State Drive!
17 Review
SAMSUNG T7 Portable SSD 1TB: Fast and Reliable USB 3.2 External Solid State Drive in Gray
13 Review