Amazon.com: COMeap 24 Pin to 6 Pin ATX PSU Power Adapter Cable for Dell Motherboard with 6 Pin Port 13.3-inch(34cm) : Electronics
24-pin Motherboard Power Connector Pinout
ATX power: 20 or 24 pins? - Super User
Amazon.com: SUPERPLUS 24Pin Right Angle ATX 24Pin Female to 24pin Male Right Angle Adapter for Desktop PC Power Supply ATX 24 pin 90 Adapter ATX 24 pin Cable : Electronics
24-Pin ATX Power Connector to 24-Pin mini ATX / mITX Adapter
Are these tolerances acceptable on a 24 pin connector? - Power Supplies - Linus Tech Tips