 That way, connectivity options of the X99 chipset may be adjusted to fit the needs of a particular motherboard implementation; for example, some of the SATA or USB 3.0 ports may be exchanged for additional PCI Express 2.0 lanes.The X99 chipset supports Virtualization Technology for Directed I/O (Intel VT-d), which provides hardware support for virtualization by implementing an input/output memory management unit (IOMMU).The chipset also integrates a Low Pin Count (LPC) interface, supporting interrupt controllers, timers, power management, super I/O, real-time clock (RTC), etc.