Can I combine the NA-FH1 with the NA-FC1? 

Yes, the NA-FC1 is compatible with the NA-FH1. We recommend using the extra S-ATA power connector when connecting more than three fans to one fan header to avoid damage to any components. 

Below is a recommended setup; however, more detailed and further setups can be found in the manual for the NA-FH1: 

How does the NA-FH1 behave with multiple different fans? 

First of all, it is important to note that you cannot set an RPM target that is the same for all fans, since you can only adjust the PWM duty cycle of the fan and not directly at how many RPM it should spin at. Assuming a NF-S12A PWM and NF-A12x25 PWM are used on the NA-FH1: 

The NF-S12A PWM has a maximum of 1200 RPM. 

The NF-A12x25 PWM has a maximum of 2000 RPM. 

All fans share the same duty cycle that is provided on the input signal. The fans cannot be controlled individually. With the duty cycle is set to 50%, the NF-S12A will spin at roughly 600 RPM and the NF-A12x25 will spin at roughly 1000 RPM. The scaling is not exactly linear; however, it is close enough to make the mentioned example applicable. 

How can I mount the NA-FH1 in my case? 

The NA-FH1 is equipped with four magnets, it can be mounted on any metal part in your PC case. Although, it should not be mounted on hard disk drives. 

How does the NA-FH1 compare to other fan hubs? 

The NA-FH1 features many safety precautions to avoid damage to other components in a system. It uses several fuses to allow for overcurrent and short circuit protection. This allows the NA-FH1 to shut down and avoid damage. In addition, signal enhancement circuits are present to ensure that the RPM signal is of good quality. Further details about the technical refinement can be found in this press release.