Samsung 512GB Type-C USB Flash Drive, Up to 400MB/s Read, USB 3.2 Gen 1

At 512GB with a 110MB/s write rating, this is the Samsung Type-C drive that takes a large transfer without a long wait - the 64GB and 128GB versions of the same family are rated far lower for writes, at 30 and 60MB/s.

Reads are 400MB/s on a 5Gbps port. Type-C only, with Samsung's water, magnet and X-ray resistance, and sold here as one capacity rather than a range.