Amazon.com: Fancasee 4-Pin PWM PC Fan Hub Power Supply Cable 1 to 5 Way Splitter PC Motherboard Case Fan Power Extension Cable Cord for ATX Computer Case 4-Pin and 3-Pin Cooling Fans :
Computer Cooling Fan Cables | Cpu Fan Connector | Adapter Connector | Pc Fan Connector - 1x - Aliexpress
EK-Cable Y-Splitter 3-Fan PWM (10cm) – EK Webshop
4-Pin Molex to 4-Pin Fan Adapter Cable MDY-4PM-4FF
Mini Mods: "Modular" Fan Cabling | bit-tech.net
12' 4Pin PWM Fan Extension Power Y Cable - Computer Power Cables - Internal | StarTech.com
StarTech.com FAN4EXT12 1 ft. 4 Pin Fan Power Extension Cable - F/M Female to Male Internal Power Cables - Newegg.com
2pin Fan Extension Cable 12” or 72” – Coolerguys
Fan Mini 2 Pin PH 2.54mm Pitch Connector Speed Reduction Control Cable - MODDIY