NeweggBusiness - ORICO Aluminum 5.25 inch to 2.5 or 3.5 Inch Internal Hard Disk Drive Mounting Kit with Screws and Shock Absorption Rubber Washer- Black (AC52535-1S-V1)
2pcs/set 3.5 Inch Universal Hard Drive Mounting Bracket Adapter For 5.25 Inch Bay - 3.5 To 5.25 Hdd Drive Adapter Bracket - Pc Hardware Cables & Adapters - AliExpress
Teac CS-235R 5.25" Adaptor Kit for 3.5" Micro FDD
2pcs 5.25" 4 Pin Molex To 3.5" Floppy Drive FDD Internal Power Cable Adaptor | eBay
5.25" 4 Pin Molex To 2 x 3.5" Floppy Drive FDD Power Splitter Adaptor Cable Lead 5056098700662 | eBay
Teac CS-235R 5.25" Adaptor Kit For 3.5" Micro FDD - Mara Industrial
100pcs/lot 10cm/20cm 5.25" 4 Pin Molex To 3.5" Floppy Drive FDD Internal Power Adaptor Cable black - AliExpress
BYTECC Bracket-35525 3.5" Mounting Bracket Universal Adaptor For 5.25" Drive Bay or Enclosure - FrozenCPU.com