Fan splitter: The fan splitter function can be used either for 3 pin fans or for 4 pin PWM fans, provided that the connected fan controller supports each fan type (voltage controlled/PWM controlled). The speed signal of one connected fan (connector marking "rpm") is forwarded back to the fan controller. Lighting system adapter: RGBpx Splitty4 can be used to connect the following manufacturer specific lighting systems to the RGBpx system: Manufacturer Corsair (four connector for a maximum of four fans,"LED hub" is not required): QL120 RGB, QL140 RGB (34 LEDs per fan; max. two pieces can be connected) LL120 RGB, LL140 RGB (16 LEDs per fan) HD120 RGB, HD140 RGB (12 LEDs per fan) ML120 PRO RGB-LED, ML140 PRO RGB-LED (4 LEDs per fan) Manufacturer NZXT (one connector, further fans can each be connected to the preceding fan, up to a total of eight fans): Aer RGB120, Aer RGB140 (8 LEDs per fan) Installation: The board can conveniently be attached to two adjacent fans and thereby enable a very clean cable arrangement without the usual tangle.