Ultra ULT40027. Host interface: PCI, Output interface: USB 2.0, Firewire. Data transfer rate: 480 Mbit/s. Connectivity technology: Wired, Supported data transfer rates: 1.5, 12, 100, 200, 400, 480 Mbits/sec, Compatible operating systems: Windows 98 Windows ME Windows 2000 Windows XP Mac OS