Cisco WS-X6408A-GBIC= Network Switch Component Networking

Designed for distribution and core layers and for data-center and Web-hosting applications, Cisco Catalyst 6500 series Classic Gigabit Ethernet interface modules provide line-rate forwarding with the following operational advantages and characteristics:
Backplane connection-Provide a 32 Gbps shared bus connection
Slot requirements-Can occupy any slot in any Cisco Catalyst 6500 Series chassis
Supervisor engine-Supported by the Supervisor Engine 1A, Supervisor Engine 2, or Supervisor Engine 720
Forwarding mode and performance-Uses the central CEF engine located on the supervisor engine to forward packets up to 15 Mpps per system in the interface module's base configuration
Distributed forwarding upgrade-None; Classic interface modules cannot be upgraded for distributed forwarding
Optics-Supports hot-pluggable gigabit interface converters (GBICs)