Please note that this pump will be offered in either Alphacool or Aquacomputer branded pumps. Both pumps have the same functionality as they are both made by Xylem. This pump is ideal for PC and other electronics water cooling. The DC pump is equipped with an electronically commutated spherical motor. In a pump with a spherical motor the only moving part is a spherically shaped rotor which in this pump is held in place by a bearing ball made of ultra-hard and wear-resistant ceramic. The spherical bearing of the rotor offers many advantages: For example an increase of bearing play is impossible due to the design, allowing the pump to run quietly and smoothly over its whole lifespan. A separate magnetic shielding of the pump is not needed. The ball motor design allows efficient operation of the pump in combination with excellent performance. The pump can simply be connected to a 12V Molex connector of the system PSU. The special feature of this model is the fact that only the pump core itself is shipped. Why pay more for all the things you won't need when using this pump with a third-party pump top? Datasheet D5 Pump VPP655 Voltage: 12V DC Head Pressure 3.7m Maximum Flow Rate 1500 l/h Maximum Operating Temperature 60°C Voltage Range 8-24V DC Material Plastic, Ceramic Maximum Power consumption 37W Dimensions: 70 x 72 x 82mm Cable Connections 4Pin Molex + 4Pin PWM NoticeNot intended for continuous operation with fluids containing titanium dioxide or glycerin. Many solid pastel colours typically use these additives. Alphacool's note on applicationPlease use only in conjunction with clear transparent water cooling fluids. The particles and additives in Pastel liquids can clog and permanently damage water cooling products such as radiators, pumps, coolers and hoses. This can result in voiding the manufacturer's warranty as well.