ATX -5V Adapter (ATX version) from Milk Factory Computers on Tindie
12in ATX Power Supply to Pentium® 4 Power Adapter Cable | Internal PC Power Cables | Power Cords | Power Charging and Cable Management
ATX 24Pin Male to Female 90 Degree Power Adapter ATX 24 Pin L Turn Right Angled Power Adapter Board for Desktop Motherboard PC Power Supply - Newegg.com
450W DC-ATX Power Module 24Pin DC 12V Power Supply Board DC to ATX Adapter PC | eBay