6 Inch 5.25 Male to 3.5 Female Internal Power Adapter | Computer Cable Store
100pcs/lot 10cm/20cm 5.25" 4 Pin Molex To 3.5" Floppy Drive FDD Internal Power Adaptor Cable black - AliExpress
Teac CS-235R 5.25” Adaptor Kit for 3.5”MICRO FDD | eBay
Teac CS-235R 5.25” Adaptor Kit for 3.5”MICRO FDD | eBay
3.5 Inch To 5.25 Inch Hdd Hard Disk Drive Rack Bay Converter Desktop Pc Case Mounting Bracket Adaptor Kit Aqjg - Pc Hardware Cables & Adapters - AliExpress