Out of the box the disc impresses with its shape but right after installation there were a few things that were alarming. In minimal instructions, they talk a lot about using their security software. In OS X 10.15.1, the program cannot be uninstalled. It can be mounted without any software and is fast enough when copying media files. It feels VERY hot. I use it in the studio to transfer music files and it does the job, but it's tiny and I wouldn't try to put it on a keychain, especially since the connection isn't closed. I would never leave it in a USB port like I have with other flash drives. That makes it less than ideal for my use, but not enough to rule it out. It's just a nuisance getting the thing in and out. From a functional point of view, the heat bothers me. The drive is hot enough to worry about its durability, which can cause serious problems later. And it's a little confusing when the software sounds like a deal breaker when it's not installed. It's not like this. For my use it's 3.5 with a trend towards 4.0 as it works. This leaves room for stability issues. Heat is a major problem in every other electronic device I know of, with the exception of some power amps from the 1990's. But it does the job, just not in the way I'd prefer.
Sandisk Ultra Flair 128 GB Silver USB Flash Drive: Reliable and High-Speed Storage
65 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
32GB SanDisk USB Flash Drive (SDCZ430-032G-A46)
78 Review
2 TB External HDD ADATA DashDrive Durable HD650, USB 3.2 Gen 1, Blue
55 Review
Shock-Resistant Transcend StoreJet 25M3 USB 3.1 Slim Portable Hard Drive with 500GB Capacity
99 Review
π Seagate Expansion 3TB Portable USB 3.0 External Hard Drive (STEA3000400) in Black
60 Review
π Seagate Backup Plus Slim STHN2000400 2TB Portable Hard Drive - Black: Your Reliable External Storage Solution
93 Review