The D-Tek dB-1 inline pump delivers an ultra low noise (20db) within its small compact size and is perfect for low flow restriction in a multiple water block loop. The dB-1 pump generates approximately 132 gallons per hour of flow utilizing a ceramic bearing internal impeller. This pump also operates with the use of a 3-pin connector to your motherboard which also provides an impeller RPM reading that can be monitored just like a fan. The pump motor can also function between 8 to 12V thereby allowing for variable speed an flow output. The D-Tek dB-1 comes with two 1/2" fittings for use with 1/2" ID tubing but other fittings are available as this pump is equipped with G1/4 thread at both the intake and outflow ports.