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WS-X6904-40G-2T
Cisco 6500 Module WS-X6904-40G-2T C6K 4 port 40 Gigabit Ethe...
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WS-X6904-40G-2T is a high-performance Ethernet module engineered for modern network infrastructures, delivering an aggregate data rate of 40Gbps through its dual high-speed ports. Designed with QSFP+ connectors, this modular card supports industry standard protocols such as TCP/IP and Fibre Channel, making it compatible with leading routers, switches, and servers in enterprise and data center environments.
Optimized for scalable network expansion and upgrading server interfaces, the WS-X6904-40G-2T seamlessly integrates into existing Cisco platforms. Its plug-and-play installation in modular chassis combined with features like auto-negotiation, jumbo frames, and QoS make it ideal for high-bandwidth applications that demand reliable and efficient high-speed connectivity.
WS-X6904-40G-2T price is $10,027.00, a 75.8% saving from the Cisco list price of $41,400.00. WS-X6904-40G-2T is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-X6904-40G-2T for additional pricing. Browse the full Cisco 6500 Switch Modules series or explore all Cisco products.
In a large enterprise data center running hyperconverged infrastructure, the Cisco Catalyst 6500 WS-X6904-40G-2T C6K module delivers four 40 GbE uplinks with DFC4 hardware acceleration. By aggregating virtualized compute and storage fabrics over a low-latency backbone, IT teams achieve line-rate performance, sub-2 µs latency and non-blocking throughput. Outcome: 4× faster VM migration, 30% higher application I/O, simplified capacity planning and predictable growth at minimal OpEx.
A multinational university deploys the WS-X6904-40G-2T module with DFC4 TrustSec to enforce role-based access across wired and Wi-Fi campus buildings. Leveraging hardware-embedded security policies, the solution dynamically classifies traffic, isolates sensitive labs and automates guest onboarding. Outcome: Zero-touch policy enforcement, 80% reduction in VLAN sprawl and real-time compliance with PCI-DSS and GDPR mandates.
A regional ISP outfits its aggregation ring with the WS-X6904-40G-2T C6K module to terminate customer circuits at 40 Gbps, backed by DFC4 QoS and TrustSec enforcement. This high-density 4-port solution simplifies fiber splicing points, accelerates service turn-up and protects premium business links. Outcome: 50% faster provisioning, 99.999% SLAs, and a scalable platform for future 100 GbE upgrades.
To get the detailed certification, please go to the Compliance Center.
 WS-X6904-40G-2T |  WS-C6503-E-FAN |  WS-SVC-NAM-1-250S |  WS-F6700-DFC3BXL |  WS-SVC-IDS2-BUN-K9 | |
|---|---|---|---|---|---|
| Product Type | Network Module | Fan Module | Network Module | Network Module / Network Card | Network Module / Network Card |
| Module Type | Ethernet | FAN | Ethernet | SFP+ | Ethernet |
| Data Rate | 40G | N/A | 1Gbps | 10G | 10Gbps |
| Connector Type | QSFP+ | N/A | RJ-45 | SFP+ | SFP+ |
| Supported Protocols | TCP/IP, Fibre Channel | N/A | TCP/IP, iSCSI | TCP/IP | TCP/IP |
| Form Factor | Modular | Modular | PCIe | PCIe | PCIe |
| Operating Temperature | 0 to 70°C | N/A | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | N/A | -40 to 85°C | N/A | -40 to 85°C |
| Input Voltage | 3.3V | N/A | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco Catalyst 6500 Series | Cisco, Juniper, Arista, Dell, HP | Cisco, Juniper, Arista, Dell, HP | Cisco / Juniper / Arista / Dell / HP |
| Max Speed | 40Gbps | N/A | 1Gbps | 10Gbps | 10Gbps |
| Supported Features | Auto-negotiation, Jumbo Frames, QoS | Redundant Cooling, High Airflow | Auto-negotiation, Jumbo Frames, QoS | Auto-negotiation, Wake-on-LAN, Jumbo Frames, QoS | Auto-negotiation / Wake-on-LAN / Jumbo Frames / QoS |
| Power Consumption | N/A | N/A | N/A | 12W | 15W |
| Interface Ports | QSFP+ | N/A | Ethernet | SFP+ | Ethernet |
| Expansion Slots | N/A | N/A | N/A | PCIe | N/A |
| Product Name | WS-X6904-40G-2T | WS-C6503-E-FAN | WS-SVC-NAM-1-250S | WS-F6700-DFC3BXL High-Performance SFP+ Network Module | WS-SVC-IDS2-BUN-K9 |
| Height | N/A | N/A | N/A | N/A | 1.5 inches |
| Width | N/A | N/A | N/A | N/A | 3.5 inches |
| Depth | N/A | N/A | N/A | N/A | 0.5 inches |
| Weight | N/A | N/A | N/A | N/A | 1.2 lbs |
The WS-X6904-40G-2T provides exceptional 40GbE connectivity. It integrates seamlessly into our network, delivering fast, reliable performance with minimal setup.
We upgraded to the WS-X6904-40G-2T, and it's been a game-changer. High-speed 40GbE support boosts our network's performance and stability.
The WS-X6904-40G-2T module delivers excellent performance. It supports high-demand applications and provides fast, stable connections for our growing business.
This module provides reliable and scalable performance. The WS-X6904-40G-2T offers great value, handling heavy traffic with ease and without performance loss.
The WS-X6904-40G-2T has been crucial for improving our network's speed. Fast and reliable, it delivers exceptional performance under high traffic conditions.
The Cisco WS-X6904-40G-2T is a Catalyst 6500 series line card offering four 40 Gigabit Ethernet ports and integrated DFC4 for high-performance switching and TrustSec security.
The WS-X6904-40G-2T is compatible with Catalyst 6500 and 6500-E series supervisors that support DFC4 line cards.
The WS-X6904-40G-2T provides four 40 Gigabit Ethernet ports for high-density uplink and core deployments.
The module delivers up to 320 Gbps of bidirectional throughput, enabling nonblocking high-speed forwarding.