EnLabs PSUTESTER01 PC Computer 20/24 Pin Power Supply Tester With CPU ATX 4- pin,EPS 8pin, PCIe 6pin, SATA 15pin,HDD Molex 4pin, Floppy Small 4pin Connectors - Newegg.com
sanpyl RNAB07SS8B6FZ power supply tester, 20/24 pin power detection tool checker hdd sata floppy for computer
Floppy Drive Connector adapter cable 34P to 26 pin / 34PIN to 26PIN flexible cable USB to 34P / USB to 26P floppy drive - AliExpress
24 to 34 pin adaptor/convertor for VARIOUS older boards - YamahaMusicians.com
ATX Power Supply PSU Tester with 20/24 Pin, SATA & Molex HDD Connectors - $7.19 - JacobsParts Inc