USB 2.0 specification compatibility Compatible with OHCI (Open Host Controller Interface) Hot-swappable and real plug-and-play capability Provides bus-fault detection and reconfiguration 2.0 hi-speed PCI card runs at up to 480Mbps Compatible with Windows 98/ME/2000/XP and Mac OS 8.6 or later Complies with USB 2.0 and USB 1.1 standard specifications Compatible with EHCI (Enhanced Host Controller Interface) Provides four USB root ports, each port supports with 1.5Mbps, 12Mbps full speed and 480Mbps high-speed function PCI interface specification V.2.2 compliant