Cisco

Cisco WS-X4904-10GE | 4x 10GbE (X2) half card | modular 10G uplinks for Catalyst 4900M | X2 optics: SR/LR/ER/CX4

Cisco WS-X4904-10GE | 4x 10GbE (X2) half card | modular 10G uplinks for Catalyst 4900M | X2 optics: SR/LR/ER/CX4

SKU:WS-X4904-10GE

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Description

Flexible 10GbE fiber expansion for Catalyst 4900M, offering four X2-based ports in a half-card form factor. Choose from SR, LR, ER, or CX4 X2 modules to match distance and media needs for aggregation or core uplinks.

Features

- Four flexible 10GbE X2 ports for fiber or copper (CX4) connectivity
- Half‑card size enables mixed media configurations within one chassis
- Hot‑swappable for serviceability without extended downtime
- Optimized for aggregation and interconnect roles in campus/data center
- Works with a broad range of X2 transceivers to tailor reach and media

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Can I mix different X2 optics across the four ports?
A: Yes. Each X2 port can use a different optic type, provided it is supported by the chassis software.

Q: Does this module work in non‑4900M switches?
A: No. It is specific to the Catalyst 4900M platform.

Q: Is the module line‑rate on all four 10G ports?
A: The module is designed for 10G operation on all ports; overall performance is subject to the 4900M chassis fabric and software.

Q: Do I need specific IOS versions?
A: Use a 4900M IOS release that supports the X2 10GbE modules; consult official release notes for minimum versions.

Technical Specifications

- Ports: 4x 10GbE X2
- Optic form factor: X2 (supports 10GBASE‑SR, LR, ER, and CX4 where applicable)
- Wavelengths: SR 850 nm MMF; LR 1310 nm SMF; ER 1550 nm SMF (per optic)
- Typical reach: SR up to 300 m OM3; LR up to 10 km; ER up to 40 km (per optic and fiber quality)
- Connector: LC via X2 optical modules; CX4 copper via X2‑10GB‑CX4
- Form factor: half‑card for Catalyst 4900M (one half slot)
- Hot-swap: OIR supported when enabled on the chassis
- Feature set: L2/L3 handled by the host 4900M supervisor/IOS
- Use cases: high‑speed uplinks to distribution/core, inter‑rack links

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