Industrial Chassis | iStarUSA Products | T-5K25TU-SA - Trayless 5.25" to Slim ODD and 2.5" SATA 6 Gbps HDD SSD Hot-swap Rack with USB 3.0
OWC Slim Optical Drive Enclosure Kit with USB... at MacSales.com
Mini SAS 2x2.5 SATA/SAS + ODD Backplane - Hard Drive Racks - HDD Mobile Racks & Backplanes | StarTech.com
SYBA Multimedia Multipurpose 5.25" Bay Adapter for Slim Optical Drive and 2.5" SATA I/II/III HDD SY-MRA55005
Amazon.com: Cinolink 5.25 to 3.5 Drive Bay Adapter HDD SSD Mounting Bracket 5.25 inch to 2.5 or 3.5 Inch Internal Hard Disk Drive Mounting Kit with Screws and Shock Absorption Rubber Washer- Black : Electronics