SanDisk 250GB Extreme Portable External SSD - Up to 550 MB/s - USB-C, USB 3.1 - SDSSDE60-250G-G25 - Newegg.com
500GB SanDisk Extreme Portable SSD (SDSSDE60-500G-G25) USB 3.1 Gen 2 Type-C and Type-A Interface - WIT Computers
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SanDisk Extreme Portable SSD 1TB 500GB 550M External Hard Drive SSD USB 3.1 HD SSD Hard Drive 250GB Solid State Disk for Laptop|External Solid State Drives| - AliExpress