Extreme Networks' new BlackDiamond chassis and "i" series switch modules enable service providers, web content providers and enterprise customers to scale network performance, bandwidth and port density to incredible heights. "i" series switch modules provide an awesome range of fully integrated features that enable you to escalate your e-business to the next level.G8Xi GBIC-based Gigabit Ethernet switch module can support 1000BASE-SX, 1000BASE-LX, and 1000BASE-LX70 GBICs.