PWM Fan Hub Splitter PC Controller 10 Ports

Description

Connect multiple cooling fans to your PC or mining rig. Avoid unnecessary current  running through your motherboard and extend number of available ports.

Should I buy the MOLEX or SATA power verison?

It depends on the type of your cooling fans. If your fans are very powerful go for the MOLEX version. As the MOLEX power connector allows more current to run through the wires it will work better for you.
If you are only going to use a regular PC cooling fans SATA power will be sufficient.