Blue USB connector (Hi-Speed USB), I found that copying data from an SD card to this USB is faster. The more GB, the more storage space, but for backing up music or short videos, it works great.
Titan Gray Samsung BAR Plus 256GB USB 3.1 Flash Drive (MUF-256BE4/AM) with Up to 400MB/s Transfer Speed
69 Review
Compact and Convenient: SanDisk Cruzer Fit USB 32GB Flash Drive (SDCZ33-032G-A11)
66 Review
Kingston DataTraveler flash drive 100 G3 256 GB, 1 pc. black
74 Review
Samsung BAR Plus 128GB USB 3.1 Flash Drive - 400MB/s - Champagne Silver (MUF-128BE3/AM)
65 Review
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
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8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review
18 TB External HDD Western Digital WD Elements Desktop, USB 3.0, black
95 Review