OWC 250GB Mercury Pro Legacy 3.5-Inch SSD Internal Drive Kit
Dual SSD HDD Mounting Bracket 3.5 to 2.5 Internal Hard Disk Drive Kit Cables 2.5 Harddisk to 3.5 Bay Tray Caddy Metal Frame|SSD Adapters| - AliExpress
maxupgrades.com: Single SSD Drives kit for iMac 27 inch 2012 Models with SATA Blade SSD Module / Heatsink/ Power Cable and DATA Cables for [SSD + HDD] with iMac Adhesive LCD Tape
Rosewill RX-C200P 2.5" SSD / HDD Plastic Mounting Kit for 3.5" Drive Bay - Newegg.com
Dell 512GB internal Solid State Drive (SSD) Upgrade Kit for upgrading Dell Desktops and Notebooks - 2.5" SATA | Dell USA
WD M.2 NVMe Black SSD Upgrade Kit
2.5in SSD/Hard Drive Installation Kit For Two (2) 2.5” SSD/HDD to 3.5” Drive Bay with SATA Data and Power Cables - Micro Connectors, Inc.