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.
The Cisco SFP-10G-SR-S is a high-performance 10GBase-SR SFP+ transceiver module designed for short-reach multimode fiber (MMF) applications. Operating at an 850nm wavelength, this module delivers reliable 10 Gigabit Ethernet connectivity ideal for data center, enterprise core, and high-density switching environments. This unit is professionally refurbished and tested to original Cisco factory specifications — offering enterprise-grade performance at a fraction of the cost of new.
Technical Specifications
Fiber Type
Multimode Fiber (MMF)
Ideal Use Cases
High-Speed Inter-Device Links
Optical uplinks between switches, routers, and servers at distance beyond copper.
Data Center Backbone
High-density optical backbone connectivity.
What's Included
✔ Cisco SFP-10G-SR-S Refurbished Optical Transceiver (1x)
✔ Protective dust caps installed
✔ WhaleyComm ISO 9001-certified inspection 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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Compatible Applications
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10 Gigabit Ethernet data center interconnects
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High-density server and storage networking
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Enterprise campus and core switching
Compatible with Cisco Catalyst, Nexus, and ASR platforms supporting SFP-10G-SR-S