11-inch 24-Pin to 18-Pin ATX Power Supply Adapter for HP z210, z220, z – Ayagroup.com
Amazon.com: 24-pin to 18-pin ATX Power Adapter Cable for PC Z220 Z230 Z620 Z420 System 13 inch : Electronics
24 Pin to 18 Pin ATX PSU Power Adapter Cable for HP Z220 Z230 Z420 Z620 WorP5H4 4894855732218 | eBay
Amazon.com: COMeap 18 Pin + 10 Pin to 24 Pin ATX PSU Power Adapter Sleeved Cable for Corsair AX Series and Seasonic Power Supply 24.8-inch(63cm) : Electronics