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Cisco GLC-SX-MM-RGD New Optics WhaleyComm
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Cisco GLC-SX-MM-RGD 1000BASE-SX 850nm Rugged SFP Transceiver Module

MPN: GLC-SX-MM-RGD
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$35.00
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Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.

Tested to factory specification. Backed by 25 years of enterprise trust.

Tested to factory specification. Backed by 25 years of enterprise trust.


The Cisco GLC-SX-MM-RGD is a ruggedized, industrial-grade 1000BASE-SX Small Form-Factor Pluggable (SFP) transceiver module designed for high-reliability Gigabit Ethernet deployments over multimode fiber. Operating at an 850nm wavelength, this module is purpose-built to withstand extreme environmental conditions, making it ideal for harsh industrial, outdoor, and mission-critical enterprise environments.


Every unit sold by WhaleyComm is an original Cisco product, verified and tested to factory specifications before shipment. Whether you're expanding your network infrastructure or replacing a failed component, you can trust this module to deliver consistent, line-rate Gigabit performance.


Product Specifications



  • Manufacturer Part Number (MPN): GLC-SX-MM-RGD

  • Vendor / Brand: Cisco

  • Product Type: Optics — SFP Transceiver

  • Standard: 1000BASE-SX (IEEE 802.3z)

  • Wavelength: 850nm

  • Fiber Type: Multimode Fiber (MMF)

  • Connector Type: LC Duplex

  • Data Rate: 1 Gbps (Gigabit Ethernet)

  • Form Factor: SFP (Small Form-Factor Pluggable)

  • Design: Ruggedized / Industrial Grade (RGD)

  • Condition: New — Original Cisco Unit


Compatible Platforms


The Cisco GLC-SX-MM-RGD is compatible with a wide range of Cisco switches, routers, and platforms that support standard SFP slots, including Catalyst, ASR, ISR, and Nexus series devices. Always verify compatibility with your specific platform using Cisco’s compatibility matrix.


WhaleyComm — Enterprise Networking Hardware You Can Trust.

Technical Specifications
{'MPN'
'GLC-SX-MM-RGD', 'Brand': 'Cisco', 'Type': '1000BASE-SX SFP Rugged', 'Speed': '1 Gbps', 'Reach': 'Up to 300m (OM2)', 'Fiber': 'Multimode', 'Wavelength': '850nm', 'Connector': 'LC Duplex', 'Temp Rating': '-40 to 85C', 'Condition': 'New'}
Ideal Use Cases
Inter-Switch Links and Uplinks
Optical transceivers enable high-speed connections between switches, servers, and storage devices where copper is insufficient for the required distance or bandwidth.
Data Center Backbone
Ideal for backbone links between core, distribution, and access switches in data center and campus environments at significant savings versus OEM pricing.
What's Included
✔ Cisco GLC-SX-MM-RGD New Optical Transceiver (1x)
✔ Protective dust caps installed
✔ WhaleyComm ISO 9001-certified inspection and testing certificate
✔ WhaleyComm Lifetime Warranty
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. No time limits, no expiration, no hidden conditions. Backed by 25 years and 5,000+ satisfied customers.
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Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
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Platform Compatibility

  • Cisco Switches: Catalyst 3750X, 3850, 4500, 6500, 6800, 9300, 9400, 9500 and Nexus 3000, 5000, 7000, 9000 Series with matching optical slots
  • Cisco Routers: ASR 1000, ISR 4000 Series with matching module slots
  • Fiber: Verify single-mode (SMF) or multimode (MMF) per transceiver model
  • Note: Verify compatibility with target IOS/NX-OS software release before deployment
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Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
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Shipping
Orders ship within 1-2 business days from our facility in Texas. Overnight and expedited shipping available at checkout.
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Returns
Contact our support team for any DOA or warranty issues. Every WhaleyComm unit is covered by a Lifetime Warranty — we make it right, fast.
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Contact
+1 214 607-4800 | Mon-Fri 8am-6pm CST
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Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
This unit is sold as New and has never been deployed. It ships in original or equivalent packaging with a WhaleyComm Lifetime Warranty.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty — no time limits, no questions asked. If your Cisco GLC-SX-MM-RGD fails under normal operating conditions at any point, we replace it at no cost.
Every unit WhaleyComm ships undergoes an ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. Backed by 25 years of experience and 5,000+ enterprise customers.
Cisco GLC-SX-MM-RGD 1000BASE-SX 850nm Rugged SFP Transceiver Module
$35.00
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