SanDisk Extreme Portable V2 External USB 3.2 Gen 2 Solid State Drive 4TB - Office Depot
SanDisk 4TB Extreme PRO Portable SSD V2, External Solid State Drive, Black - SDSSDE81-4T00-G25 - Walmart.com
Crucial X9 Pro 4TB Portable SSD - Up to 1050MB/s read and write - water and dust resistant, PC and Mac - USB 3.2 External Solid State Drive - CT4000X9PROSSD9 - Newegg.com