MSI X399 SLI PLUS AMD TR4 EATX Motherboard. Supports AMD RYZEN THREADRIPPER Series Processors. Support 8 DIMMs, Quad Channel DDR4 3600+ (OC). DDR4 Boost: Advanced technology provided by MSI OC lab to ensure maximum compatibility for overclocking performance. AUDIO BOOST 4: Reward your ears with studio grade sound quality for the most immersive audio experience. Mystic Light and Mystic Light Sync: Personalize your PC with 16.8 million colors / 17 effects controlled in one click with the Mystic Light APP or a mobile device. Professional IO cover & heatsink: Stunning looks, protecting the I/O ports. EZ Debug LED: Easiest way to troubleshoot. Lightning Fast Game experience: 3 x Turbo M.2 , 1 x M.2 Shield, and Lightning USB 3.1 Gen2.