Simple to install, silent operation, powerful performance and easy expandability define the Kelvin Series. The silent high-performance ceramic pump is strong enough to support considerable expansion, should you decide to include GPU blocks and/or additional radiators in the same loop. The Kelvin Series water cooling systems are constructed from enthusiast class components. Both the CPU block and the radiator are made from pure copper, for maximum performance and an increased product life span with zero maintenance required. All modern CPU sockets are supported by the versatile, easy-to-use mounting kit. Key features Fantastic cooling performance The strong pump and the full-copper construction places the Kelvin Series water cooling system ahead of the pack in cooling performance. Pump resistor included for the ability to optimize the system to a lower noise level, while maintaining impressive performance levels Dynamic GP-12 PWM fans for quiet operation with significantly large airflow Wide PWM speed range, 500-2000 RPM, providing accurate and better fan speed control with quieter operation Expandable system. Just open it up to get the full benefits of custom water cooling, with the ability to add any components you want to the loop, such as a graphics card cooler. High pressure pump allows strong water flow rates even when an additional CPU model : Fractal Design Kelvin T12 Water Cooling Unit tag : Case Fans