Please note: The actual current may is about 2.8A, power is about 33W With a converter cable included,you can have 2 power ports,so you could switch the power source easily(Molex 4pin+pwm 4pin port) Size:120*120*38mm(4.72*4.72*1.49 inch) Color: Black Connector: Big 4 Pin+ Small 4pin Speed: 7500RPM Fit For: For Antminer Bitmain S7 S9/Desktop comouter