I have tested 5 out of 10 drives so far. everything works. But this LED is almost impossible to see, even in a dark room, unless you are close to the drive and looking at the LED.
Compact and Convenient: SanDisk Cruzer Fit USB 32GB Flash Drive (SDCZ33-032G-A11)
66 Review
Kingston DataTraveler SE9 32GB USB 2.0 Flash Drive for Reliable Data Storage (DTSE9H/32GBZ)
69 Review
32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
78 Review
Kingston DataTraveler flash drive 100 G3 256 GB, 1 pc. black
74 Review
π 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
Game console Microsoft Xbox One X 1000 GB HDD, black
53 Review
8TB Seagate Backup Plus Hub Desktop Hard Drive with Data Recovery Services
56 Review