The unique pump with closed impeller to offer a bigger power de vibration amp lower noise long lifetime zirconia ceramic bearing to make 120 000 hours running safely 02mm high density water micro channel amp copper block to offer a highly efficient thermal conduct 120 mmmdash27mm aluminum fins array optimized for a lower fan speed and noise also the standard mounting holes built in easy to change new 120mm fan unique 20mm thickness pwm fan to save more space and fit in htpc