Features:Control circuit, the pump is more stable, and is suitable for PC CPU cooling system.The small 3P power connector can plug directly into the original position of the headboard fan.Support speed test function.Ultra-quiet experience with a rubber shock absorber base.High quality and durable performance.Specification:Material: Acrylic + RubberFlow Rate: Max300L/hHead: Maximum 1.9 metersPower Connector: Small 3P connectorVoltage: DC12VPower: 4WWater Tank Capacity: 150mlNoise: 23DBSpout Diameter: 8 mmRemark: The red line is the DC12V power line, the black line is the ground line, and the white line is the speed line.Size: Circulating pump: approx. 7.8 x 5.5 x 6.5 cm/ 3.1 x 2.2 x 2.6 in ; Rubber chassis: approx. 8 x 7 cm/ 3.1 x 2.8 inPackage Weight: 192 gPackage list:1 x Circulating Pump1 x Rubber Chassis1 x Double-sided Adhesive Tape1 x Component Bag.