Amazon.com: SanDisk 500GB Extreme PRO Portable External SSD - Up to 1050MB/s - USB-C, USB 3.1 - SDSSDE80-500G-A25,Aluminum Enclosure–Transfer Speed Up to 1050MB/s* : Electronics
SanDisk SSD Plus 1TB Speed Test (SDSSDA-1T00-G26) - YouTube
Review: SanDisk Extreme Portable SSD - fast enough for 4K workflows [Video] - 9to5Mac
Random & Sequential Performance - SanDisk Ultra Plus SSD Review (256GB)