Name: WS-U5535-FEFX-SMF Cisco Dual Port 100BaseFX SMF Fiber Uplink Module
Brand: Cisco
SKU: WS-U5535-FEFX-SMF
Price: 152.00 USD
Availability: InStock
Rating: 4.8 (119 reviews)

Product Overview
The WS-U5535-FEFX-SMF adapter provides dual 100BaseFX fiber ports specifically for fiber uplink connections on Cisco Supervisor III switches. It fits into network setups that need reliable, long-distance single-mode fiber links, typically connecting different network areas or data center equipment. This adapter strikes a balance between fiber performance and integration with existing Cisco infrastructure, making it a practical choice for extending network reach without compromising stability.

General Information
Brand	Cisco
Part Number	WS-U5535-FEFX-SMF

Connectivity & Physical
Weight	3.00
Condition	Refurbished

Miscellaneous
Assembly Required	Yes
Eco Friendly	Yes
Compliance Standards	WEEE, RoHS, cURus, CE, FCC, CCC, UL, TUV, cULus, CSA, cUL

Product Description
This Cisco network adapter is built for extending network connectivity using fiber optic cables. It allows Supervisor III modules to connect via single-mode fiber, which is common in large campus or enterprise environments where long-distance connections are needed. Often found in Cisco Catalyst switches, this uplink module is ideal for network administrators looking to maintain stable and fast communication between network segments over greater distances than copper cabling allows. It benefits organizations that require reliable fiber connections to backbone networks or data centers. Key Features Two independent 100BaseFX fiber ports for uplink flexibility Compatible with Cisco Supervisor III chassis and modules Uses single-mode fiber for extended reach up to several kilometers Low latency and high reliability in fiber network environments Easy installation within existing Cisco switch infrastructure This module is widely deployed in enterprise networks where backbone links must run over fiber for distance and interference immunity. It helps maintain consistent network performance and supports the demands of critical business applications.

Use Cases
The WS-U5535-FEFX-SMF adapter is ideal for network environments requiring high-reliability fiber uplinks over extended distances, such as enterprise campuses and distributed data centers. IT teams managing Cisco Supervisor III-based infrastructures benefit from its seamless integration and ability to support long-haul single-mode fiber connections. How It's Used: Connecting geographically separated data centers within an enterprise campus to ensure consistent network throughput. Extending network reach in large-scale university networks where fiber runs exceed copper limitations. Providing uplink ports in service provider edge routers to support fiber backhaul connectivity. Facilitating high-speed fiber links in enterprise storage area networks (SANs) requiring low-latency communication. Linking remote branch offices to central headquarters over single-mode fiber infrastructures to maintain secure, stable connections. This adapter supports operational efficiency by enabling scalable fiber uplinks that maintain performance and stability across diverse network topologies. It helps IT professionals address distance limitations and enhances the robustness of fiber-based connections within Cisco network deployments.

WS-U5535-FEFX-SMF Cisco Dual Port 100BaseFX SMF Fiber Uplink Module

Product Overview

General Information

Connectivity & Physical

Miscellaneous

Product Description

Use Cases