Compact 92mm size (134mm height) for excellent PCIe compatibility and 4U support, high cooling performance thanks to 6 heatpipes, dual tower design and two NF-A9 premium fans, ideal for quiet 4U servers Supports narrow and square type LGA3647 sockets for Intel Xeon Scalable (Platinum, Gold, Silver or Bronze, Skylake-SP/Purley) and Xeon-Phi platforms (Knights Landing, Knights Mill) Two award-winning NF-A9 fans (push/pull dual fan configuration), supporting PWM for automatic speed control through the motherboard: silent at idle, full CFM performance when necessary Pre-applied NT-H1 thermal compound and easy, straightforward installation thanks to SecuFirm2 mounting system and included processor clips