X99-M WS is the first ASUS micro-ATX with PCIe slots able to accommodate up to two dual-slot graphics cards. The motherboard supports both two-way NVIDIA Geforce SLI and AMD CrossFireX configurations, making it an excellent choice for graphics professionals who depend on powerful graphics in areas such as design and modeling, medical research, plus processing-intensive simulation and rendering applications. In addition to graphics cards, extensive expandability offers ample room for RAID cards, PCI Express-based solid-state drives (SSDs), video-capture cards and many other popular components.