V1.4-3 PWM HUB 1 to 8 PWM Fan Splitter - SATA Powered 4-Pin PWM Fan Controller for PC Case Cooling & Water Cooling• Turns 1 motherboard PWM header into 8 fan ports for multi-fan builds.• Dual Power Design, SATA power (ports 5-8) + 4-PIN PWM (ports 1-8) prevents motherboard overload.• Precise PWM Control, Ports 1-8 support speed adjustment for quiet, efficient cooling.• Broad Compatibility, Works with 4-PIN/3-PIN fans, CPU coolers, and radiators.• Plug-and-Play, Includes 4-PIN cable for instant, tool-free installation.