．USB(Universal Serial Bus) 1.1 specification compatibility.

．Compatible with OHCI (Open Host Controller Interface) Revision V.1.0a .

．Hot-Swappable and real Plug & Play capability.

．Two downstream ports support full speed (12Mbps) and low speed (1.5Mbps) that works as a Root Hub function.

．Support up to 127 USB devices

．Supports over-current and high-inrush current protections.

．Provides Bus fault detection and reconfiguration.

．PCI interface specification V.2.1 compliant.