Reeven Polariz RFC-4 Fan Controller Review


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Reeven Polariz RFC-4 Fan Controller Review

By Aidan Moore

Manufacturer: Reeven LLC
Product Name: Polariz RFC-4 Fan Controller
Model Number: RFC-4
UPC: 840636102064
Price As Tested: $52.99 (Newegg)

Full Disclosure: The product sample used in this article has been provided by Reeven.

Most PC enthusiasts would not place a fan controller at the top of the list for PC upgrades. Almost all motherboards include fan RPM sensors and headers for CPU and chassis fans that can be set to automatically adjust the fan speed as temperatures fluctuate.

So it takes a device with some real extra functionality and bling to influence a system builder to the point where the extra space on the front of the PC can be sacrificed for more or less redundant piece of technology.

The new Polariz RFC-4 fan controller from Reeven might just live up to those requirements, as it is one of the most attractive and functional fan controllers available for the PC aftermarket.

In this article for Benchmark Reviews, we will test the Reeven Polariz RFC-4 fan controller to see if it provides enough functionality and style to justify the cost and space required in a custom desktop PC build.


The  Polariz RFC-4 fits into a standard 5.25″ drive bay on the front of the PC, and provides three automotive type circular controls for three separate fan circuits.

Once installed and connected, the round automotive HVAC type controls light up with clear white LED displays to provide information on fan RPM, sensor temperature and the voltage applied to the fan.

Key features of the Polariz RFC-4 are:

  • car dashboard style fan control
  • extra large knobs for fan control
  • convenient information display
  • solid metal housing
  • Two year Warranty (Standard Reeven Warranty)


Reeven published specifications for the Polariz RFC-4 are shown below:

Reeven RFC-4
Model Number RFC-4
Dimensions (W)148 x (H)42.5 x (D)98mm
DC Input DC 5V & DC12V
DC Output 4V ~ 12V (+/- 10%)
Output Current 3A per channel
Temperature Range 0-90C
Fan Speed Range 0-9990 rpm
Weight 330g
Fitness 5.25″ driver bay
Compatible Fan 4 pin PWM, 3 pin
Total Power Output 36W
Total Channels 3


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