Crucial X6 4TB Portable SSD - Up to 800 MB/s - USB 3.2 - External Solid State Drive, USB-C - CT4000X6SSD9 - Newegg.com
Amazon.com: WD 4TB My Passport SSD External Portable Solid State Drive, Grey, Up to 1,050 MB/s, USB 3.2 Gen-2 and USB-C Compatible (USB-A for older systems) – WDBAGF0040BGY-WESN : Electronics
Glyph Atom RAID SSD 4TB USB-C Portable Solid State Drive, Black | Sweetwater
SanDisk Professional 4TB G-DRIVE SSD USB 3.2 SDPS11A-004T-GBANB