GLC-SX-MMD= Cisco SFP (mini-GBIC) 1000Base-SX MMF Transceiver

BRAND NEW. FACTORY SEALED. RETAIL BOXED. FULL CISCO WARRANTY INCLUDED. FROM CHICAGO COMPUTER SUPPLY

Overview

Need a clean, reliable way to connect switches and routers over fiber without changing your entire network setup? The Cisco GLC-SX-MMD= is a trusted Gigabit Ethernet SFP (mini-GBIC) transceiver built for 1000Base-SX multimode fiber deployments. It plugs directly into compatible Cisco SFP ports and instantly enables stable 1 Gbps fiber connectivity using an LC/PC multimode interface.

This optic works beautifully for wiring closets, campus networks, and short-range fiber links where performance and uptime matter. If you want a genuine Cisco-grade module that installs fast and runs steady, this is a strong pick.

Key Features

·         Supports 1 Gbps Gigabit Ethernet fiber connectivity

·         Designed for 1000Base-SX multimode fiber (MMF) networks

·         Uses LC/PC duplex connector for common fiber deployments

·         Hot-swappable SFP form factor for quick replacement and upgrades

·         Works across a wide range of Cisco switches and routers

·         Ideal for mixing fiber and copper SFPs on a port-by-port basis

·         Helps extend networks between closets, floors, and nearby buildings

Technical Specifications

Manufacturer: Cisco

Model/Part Number: GLC-SX-MMD=

Device Type: Plug-in transceiver module

Form Factor: SFP (mini-GBIC)

Connectivity Technology: Wired

Interface / Ports: Ethernet 1000Base-SX (LC/PC multimode)

Data Transfer Rate: 1 Gbps

Fiber Type: Multimode Fiber (MMF)

Connector Type: LC/PC (Duplex)

Application: Gigabit Ethernet fiber uplinks and interconnects

UPC (from your listing): 00191120044453, 00882658340895, 00882658546358, 04053162148239, 04053162386549

Use Cases

The GLC-SX-MMD= is best suited for dependable Gigabit fibre connectivity between network closets, access switches, and distribution layers. It works well for campus networks, office buildings, and enterprise environments that already run multimode fiber and want a simple plug-in upgrade for clean 1G uplinks. It’s also a great option when you want to mix fiber and copper transceivers across ports for flexible network design.

Why Choose the GLC-SX-MMD=

·         A proven Cisco optic for stable 1G multimode fiber links

·         Simple way to add fiber uplinks without major infrastructure changes

·         Great for enterprise switching, routing, and campus networks

·         Hot-swappable design supports faster maintenance and lower downtime

·         Genuine Cisco-grade quality backed by warranty confidence

FAQs

What is the Cisco GLC-SX-MMD= used for?

The GLC-SX-MMD= is used to provide 1 Gbps Gigabit Ethernet fiber connectivity between switches, routers, and network devices using multimode fiber.

What fiber type does GLC-SX-MMD= support?

It supports MMF (multimode fiber), which is for short-range fiber runs inside buildings and campuses.

What connector type does this transceiver use?

This module uses an LC/PC duplex connector, which is a standard connector type for enterprise multimode fiber deployments.

Is the GLC-SX-MMD= hot-swappable?

Yes. It is an SFP (mini-GBIC) plug-in module, so that you can install or replace it quickly without long downtime.

What speed does the GLC-SX-MMD= provide?

It delivers 1 Gbps Gigabit Ethernet connectivity over fiber.

Can I mix this with other SFP types on the same switch?

Yes. Cisco SFPs often support flexible deployments, allowing you to mix 1000Base-SX, 1000Base-T, and 1000Base-LX/LH modules based on your port needs.

Is this product new and covered under warranty?

Yes. It is brand new, factory-sealed, retail-boxed, and includes the full Cisco warranty.

Where can I use this optic in real networks?

It’s ideal for wiring closets, access-to-distribution uplinks, and short-range fiber links where you want stable Gigabit performance with a clean fiber connection.