CRJ SATA to 3 x 4-Pin PWM Sleeved Fan Power Adapter Cable

what's going on guys today let's talk about the difference between PWM and standard three-pin fans get into it [Music] [Applause] [Music] so when shopping for a new PC fin you generally hear the term PWM or pulse width modulation or 3 pin 2 or 4 pin molex alright these two types of fans here your most common types all right 4 pin PWM okay and then you have your three pin fans alright non PWM on a computer fan with these types of this is technically still a molex connector even though when we say molex we think of a connector that looks more like that molex is really just the company who does these anyway so PWM fan you have four pins alright you have your ground you got your 12 volts alright then the third pin is the tachometer meaning it will actually report an RPM signal back to a motherboard or controller and then your fourth pin on a pwm fan is that pulse width modulation function a