http://www.macnn.com/articles/04/09/20/copper.gigabit.pci.cards/
Small Tree ships copper gigabit network adapters
updated 10:10 am EDT, Mon September 20, 2004
Copper gigabit PCI cards
Small Tree Communications is now shipping its for Mac OS X. The copper-based, gigabit Ethernet PCI server adapters feature either 1-, 2- or 4-independent ports and leverage the company's exclusive Mac OS X driver technology for fast networking. The copper gigabit Ethernet adapters are 133MHz, 64-bit capable PCI-X cards. The single- and dual-port cards Intel PRO/1000 MT Adapters are compatible with G4/G5 Power Mac and Xserve systems, while the quad port card is compatible with all Xserve and G5 Power Macs. The cards support standard Category 5 Ethernet cable (up to 100 meter connection lengths).
