Review on ORICO Mini 500GB Portable External SSD, Ultra-Slim High Speed Read/Write (Up to 1000MB/s) USB 3.1 Gen2 USB-C Port Aluminum Mobile Solid State Flash Drive for MacBook - IV300 by Ivan Carson

This SSD is getting really hot. I tested it with H2testw and it has the rated capacity. My old laptop might limit transfer speeds, but another 2T USB SSD, also rated at 1Gb/s, runs H2testw at 580MB/s on both write and read/test, this one runs natively only at 280 MB/ss and writing slows down to 110 MB/s during padding and warming up (read/verify stays steady at 280 MB/s). That's acceptable to me, but not very good. If the heat doesn't cause premature failure, this was a good buy.