FormulaMod Multifunction Fan/Lighting Controller, For A-RGB(5v 3pin) Lighting & Fan(2510-4pin) Power/PWM, 2.0 Hub For Connecting And Syncing To Motherboard, Fm-MFC2 at formulamod sale
Phobya 4Pin PWM male to male 30cm - Black PH-1012290
IT88885521: Cable 4-pin PWM connector > 2x 4-pin PWM socket, 15 cm at reichelt elektronik
PWM Cables
Cable Matters 2-Pack 3-Way 4-Pin PWM Cable for Fan Distributor (4-Pin PWM Splitter, PWM Fan Splitter) - 30 cm : Amazon.de: Computer & Accessories
PREMIUM 50cm 4 Pin PWM Braided CPU Fan Extension Cable (Black) – GPUCONNECT.COM