iMac Intel 21.5" and 27" (Late 2009-Mid 2010) SSD Upgrade Bundle - iFixit Store
Amazon.com: Seagate Expansion SSD 1TB External Solid State Drive – USB-C and USB 3.0 for PC, Laptop and Mac, with 3-Year Rescue Service (STLH1000400) : Electronics
Amazon.com: Oyen Digital U32 Shadow 1TB USB-C External Solid State Drive ( SSD) for Xbox One : Electronics
Emtec mSATA X200 Portable/External SSD Power Plus 1TB - Walmart.com
2.5' USB 3 SATA SSD / HDD UASP Enclosure - External Drive Enclosures
Wavlink USB C Gen 2 10Gbps M.2 SSD Enclosure B Key External Adapter (Included both USB C and USB 3.0 Cables) Aluminum Design SuperSpeed NGFF SATA Drive -[Compatible with Thunderbolt 3] - Walmart.com
M.2 SATA SSD to USB 3.0 External SSD Reader Converter Adapter Enclosure w/ UASP | Hard Drive Box Not Included - Walmart.com
SanDisk Extreme Portable SSD V2: higher performance, new body - HWCooling.net
VectoTech Rapid 8TB External SSD USB-C Portable Solid State Drive (USB 3.1 Gen 2) – Up to 540MB/s Data Transfer, 3D NAND Flash : Electronics
Amazon.com: CY Mini PCI-E mSATA SSD to 1.8" Micro SATA 7+9 16pin Adapter Add on Cards PCBA for SSD Hard Disk : Electronics
Amazon Best Sellers: Best External Solid State Drives
WD My Passport™ SSD External Portable Solid State Drive (500 GB to 4 TB) | Western Digital
870 QVO SATA III 2.5" SSD 8TB Memory & Storage - MZ-77Q8T0B/AM | Samsung US