Cisco WS-X6704-10GE 4-Port 10-Gigabit Ethernet Module

Cisco WS-X6704-10GE is a Catalyst 6500 Series four-port 10-Gigabit Ethernet module in the XENPAK form factor that adds four independent 10 Gb/s Ethernet ports to compatible Catalyst 6500 and select Cisco 7600 chassis, enabling high-speed interconnects in data centers, campuses, and core networks. Each port requires a Cisco XENPAK transceiver to establish a 10-Gigabit link, and the module supports full-duplex operation for reliable, high-throughput connections to upstream switches or core routers. The WS-X6704-10GE is supported with Supervisor Engine 720-10G (or equivalent), and installation guidance notes that the module occupies specific slots in compatible chassis (for example, Cisco 6513/7613 systems use slots 9 through 13), reflecting site-specific hardware compatibility. According to Cisco's Catalyst 6500 data sheet, the module provides four 10-Gigabit ports on an XENPAK, with a two-fabric-channel architecture that maps port groups across Fabric Channel 1 (ports 3–4) and Fabric Channel 2 (ports 1–2) to support high-throughput forwarding within the supported hardware and software stack.