About Sun PCIe Dual-Port GbE UTP EM Connectors and Cabling Restrictions
The Sun PCI Express (PCIe) Dual-Port Gigabit Ethernet (GbE) UTP ExpressModule (EM) currently supports copper connectors and cables.
The connector for the GbE UTP EM connects to a Category 5, copper (UTP) cable that supports a maximum operating range of 100 meters.