The MasterAir G100M is a 74.5mm low-profile CPU cooler designed for small form factor cases and compact PC builds. It has the Cooler Master custom Heat Column technology which enables exceptional heat transfer with the compact size. The illumination of the RGB LED ring and fan allows for full-color customization which is easily controlled by the wired RGB LED Controller. A powerful 92mm fan is included to maximize the top-down cooling. FEATURES Heat Column – Cooler Master custom Heat Column technology increases the direct contact surface area for exceptional heat transfer and cooling performance. RGB Ring – illuminate your cooler with RGB Ring and fan which are both certified compatible with motherboard vendors RGB software. Low Profile – 74.5mm in height, perfect for small form factors and HTPC. Wired RGB Controller – The Controller allows customizable colors and effects for the fans and top cover with just the touch of a button.