Sonnet Presto Gigabit Server PCIe. Connectivity technology: Wired, Host interface: PCI-E, Interface: Ethernet. Data transfer rate (max): 1000 Mbit/s. Cabling technology: 10/100/1000BaseT(X), Networking standards: IEEE 802.3, IEEE 802.3ad, IEEE 802.3u, Copper ethernet cabling technology: 1000BASE-T, 100BASE-T, 10BASE-T. Compatible operating systems: Mac OS X Server 10.5+ Mac OS X 10.5+ Mac OS X Lion Windows Server 2008 R2 Windows Server 2008