Amazon.com: Sedna - PCI Express (PCIe) Dual 2.5 Inch SATA III (6G) SSD Adapter (Short Double Side SSD Version) (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac),
Amazon.com: Sedna PCI Express (PCIe) Dual 2.5 Inch SATA III (6G) SSD Adapter (Extended Single Side SSD Version) (with Built in Power Circuit, no Need SATA Power Connector, Best for Mac), SSD/HDD
hard drive - Will game performance suffer by moving OS from PCIe 3.0x4 to SATA III SSD? - Super User
MB839SP-B by ICY Dock - 2.5” SATA SSD/HDD to PCIe 2.0 x1 Hot-Swap Mobile Rack for PCIe Expansion Slots. PC PitStop Data Storage Solutions - SAS Enclosures, DAS, NAS, iSCSI & FC
ORICO 1-Bay PCI-e 2.5" SDD/HDD Frame
Amazon.com: 2.5-Inch U.2 Nvme Drive to PCI Express X16 Slot Card or SATA III SSD/HDD PCI Mount : Electronics
5 Bay M.2 RAID Adapter Soft RAID Function - GLOTRENDS
SanDisk 16GB HDD SSD SDSA3DD SDSA4DH-016G mSATA Mini PCIe SATA-II Hard Disk Module Solid State Drive