8 Channels fan speed controller w/PCI slot bracket Each channel support 12V/1.5A Fans can be turned off, speed adjusted range 0%~100% full speed Support 3pin fan speed controller by voltage adjusted Incompatible with 4pin fans 8 Fans speed can be adjusted by 4 Knob 2 Fans as a group can by adjusted by one knob simultaneously 4 groups total
