The ASSASSIN 4S WH provides exceptional performance and is armed with seven 6mm heat pipes and a redesigned 140mm FDB fan. The 4S models eliminate the rear 120mm fan, providing a slimmer, more symmetrical cooler. The white and gray aesethic blend in perfectly with that all-white system.BEAUTY IN SIMPLICITYThe elegant white design of the ASSASSIN 4S WH is not just visually pleasing; it also leads to optimal air flow and maximum compatibility.QUIET OR PERFORMANCE MODEWith a simple slide of a switch, the ASSASSIN 4S WH can morph from a whisper-quiet cooler when low noise is of the utmost importance to the efficient cooling force DeepCool air coolers are known for.LET IT SHINE!The shell of ASSASSIN 4S WH is clean, sleek, and helps channel air through the fin towers, while the slimmer profile provides unobstructed clearance for high-profile RGB RAM.BE COOL, BE CALMA key factor in the ASSASSIN 4S WH's extremely silent operation is the use of three-phase, six-pole fan motors with low voltage and power consumption. DeepCool is so confident in our new design that the ASSASSIN 4S WH comes with 6 years of limited warranty coverage!EXCEPTIONAL BY DESIGNFeaturing seven heat pipes that deliver improved heat transfer through two fin-array heat sink towers for high performance efficiency. The included DM9 thermal paste meets the rigorous standards used in industrial applications.STREAMLINED INSTALLATIONInstalling larger air coolers can be difficult and is a prime reason the hardware and installation was designed to be extremely user friendly. Even the magnetic top fan cover was crafted with ease of installation in mind.