Bought for "emergency" boot flash drive, for DOS utilities - 4 Gb is best. I use it to copy / restore / maintain systems on RAIDs - it's convenient, it sees arrays without additional drivers. The speed under the OS depends on the settings of the OS (and antivirus).
Titan Gray Samsung BAR Plus 256GB USB 3.1 Flash Drive (MUF-256BE4/AM) with Up to 400MB/s Transfer Speed
69 Review
Kingston DataTraveler flash drive 100 G3 256 GB, 1 pc. black
74 Review
Kingston DataTraveler SE9 32GB USB 2.0 Flash Drive for Reliable Data Storage (DTSE9H/32GBZ)
69 Review
Samsung BAR Plus 128GB USB 3.1 Flash Drive - 400MB/s - Champagne Silver (MUF-128BE3/AM)
65 Review
🔌 Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review
18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review
🔜 Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review