ITEM NAME:1 To 5 4-Pin Molex TX4 PWM CPU Cooling Fan Splitter Adapter Braided Power Cable.Connector A: 1 - TX4 4-pin Female. Connector B: 1 - TX4 4-pin Male for CPU fan (including Detect tach pin). 4 - TX4 4-pin Male for case fan. Since only one RPM signal can be read by one motherboard connector, only CPU Fan channel of the PWM splitter carries an RPM signal;.