EK-Loop DDC 4.2 PWM Motor is a high-performance water pump with power management control (via PWM - pulse width modulation) of rotation speed through motherboard BIOS or a dedicated fan controller. The main difference to a DDC 3.2 PWM is the black cabling, SATA power connector instead of MOLEX, and 32-bit communication.This pump features 3/8\" (10mm) non-removable plastic barbs to support any 10mm ID tubing and is compatible with any EK-Quantum Kinetic TBE DDC, and FLT DDC pump-res combo units. EK highly advises using a Convection heatsink to even further prolong the lifespan of this pump.Despite a remarkably small footprint of 2.4\" square, EK-Loop DDC 4.2 PWM features an astounding 5,2m of head to provide superior flow rates in today\'s most complex liquid-cooled systems. This pump is also a high-reliability, high-pressure industrial pump, featuring a 50,000 hour MTBF (5 year lifetime).Its compact design, quiet and powerful motor make it ideally suited for heavy-duty cooling in environments where space is at a premium.Technical Specifications:- Dimensions (W x D x H): 90 x 62 x 38mm- Motor: Electronically commuted ball bearing motor- Rated voltage: 12V DC- Power consumption: 18W- Maximum head pressure: up to 5.2m- Maximum flow rate: up to 1000L/h- Maximum liquid temperature: 60C- Materials: Stainless steel, PPS-GF40, EPDM O-rings, Aluminium oxide, hard coal- Power connector: SATA power and 4-Pin PWM FAN connector for PWM / RPM readout