50cm 1 to 4 RGB Splitter Cable with 5 Male Pins - Micro Connectors, Inc.
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Amazon.com: EZDIY-FAB Adapter Cable for Corsair Lighting Node Pro and for Corsair iCUE Commander PRO (hub is not Included), Smart RGB Lighting, Connect to Any 5V 3-Pin ARGB Devices (2 x 20cm) :
Lian Li LED ARGB 4 Pin Male to 5v RGB 3 Pin Female Adapter Cable MDY-CO663
Motherboard Standard ARGB 3-pin 5V to Corsair RGB Fan Adapter | eBay