Cisco WS-X6904-40G Cisco Catalyst line card / supervisor / service module
Brand: Cisco | Category: Accessories & Components
SKU: CSC-WS-X6904-40G | Part #: WS-X6904-40G | MPN: WS-X6904-40G
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About the Cisco WS-X6904-40G Cisco Catalyst line card / supervisor / service module
The Cisco WS-X6904-40G is a high-performance line card designed for integration into the Cisco Catalyst 6500 Series and Cisco Catalyst 6800 Series chassis. This modular component delivers four 40 Gigabit Ethernet ports with QSFP+ transceiver interfaces, enabling enterprises to add substantial bandwidth capacity to their core switching infrastructure. As a genuine Cisco hardware component, the WS-X6904-40G is eligible for Cisco Technical Assistance Center (TAC) support and operates seamlessly with Cisco IOS and Cisco IOS XE software environments. The card leverages distributed forwarding architecture with DFC4 capability, ensuring wire-speed packet processing across all ports while requiring a compatible Cisco Supervisor Engine 2T (VS-S2T-10G or VS-S2T-10G-XL) for operation.
Network engineers and IT infrastructure teams seeking to upgrade aging switch fabric capacity or add 40GbE connectivity to existing Catalyst deployments represent the primary audience for this line card. Organizations managing high-throughput data center interconnects, content delivery networks, or multi-tenant environments benefit from the card's comprehensive Layer 2 and Layer 3 feature set, which includes VLAN support, STP, EtherChannel, 802.1Q tagging, IPv4 and IPv6 routing, and dynamic routing protocols such as OSPF, EIGRP, and BGP. Advanced traffic management is provided through hardware-based QoS capabilities including DSCP marking, traffic shaping, and policing. Additional features such as hardware-accelerated ACLs (VACLs and RACLs), NetFlow v9 flow accounting, and multicast support (PIM Sparse Mode, PIM Dense Mode, and IGMP snooping) make this module suitable for demanding service provider and enterprise deployments.
Omnixon Global stocks genuine Cisco switching components for immediate deployment across the UAE and greater Middle East region. For technical specifications, compatibility verification, or volume pricing on the Cisco WS-X6904-40G and related Catalyst accessories, please submit a formal Request for Quote through our enterprise procurement portal.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-WS-X6904-40G |
| Part Number | WS-X6904-40G |
| Condition | New |
| Interface | 40G |
| Manufacturer Part Number | WS-X6904-40G |
| Product Type | Line Card |
| Compatible Chassis | Cisco Catalyst 6500 Series, Cisco Catalyst 6800 Series |
| Number of Ports | 4 |
| Port Type | 40 Gigabit Ethernet (40GbE) |
| Transceiver Interface | QSFP+ |
| Forwarding Architecture | Distributed Forwarding (DFC4 capable) |
| Required Supervisor | Cisco Supervisor Engine 2T (VS-S2T-10G / VS-S2T-10G-XL) |
| Layer 2 Features | VLANs, STP, EtherChannel, 802.1Q |
| Layer 3 Features | IPv4 routing, IPv6 routing, OSPF, EIGRP, BGP (supervisor-dependent) |
| Quality of Service | Hardware-based QoS, DSCP marking, traffic shaping, policing |
| Access Control | Hardware-accelerated ACLs (VACLs, RACLs) |
| Flow Accounting | NetFlow v9 |
| Multicast Support | PIM Sparse Mode, PIM Dense Mode, IGMP snooping |
| Form Factor | Modular line card (Catalyst 6500/6800 slot) |
| Software Compatibility | Cisco IOS and Cisco IOS XE |
| Genuineness | Genuine Cisco hardware — TAC support eligible |
Frequently Asked Questions about Cisco WS-X6904-40G Cisco Catalyst line card / supervisor / service module
What does the Cisco WS-X6904-40G Cisco Catalyst line card / supervisor / service module do?
The Cisco WS-X6904-40G Cisco Catalyst line card / supervisor / service module is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.