StarTech.com Cisco SFP-10G-LR-S Compatible SFP+ Transceiver Module - 10GBASE-LR~Cisco SFP-10G-LR-S Compatible SFP+ Module - 10GBASE-LR - 10GbE Single Mode Fiber SMF Optic Transceiver - 10GE Gigabit Ethernet SFP+ - LC 10km - 1310nm - DDM Cisco Firepower, ASR9000, C9300

Product Overview

AI-generated summary

For £228.83 ex‑VAT, this is a fairly typical price point for an SFP+ LR (10km) single‑mode module that’s aimed at compatibility rather than brand-premium. If you’ve got Cisco gear like Firepower/ASR/C9300 and you just need a working long‑reach optic to get a link up quickly (and you’re happy to run compatible optics instead of paying Cisco’s rates), StarTech is usually a sensible “keep the network running” choice. The key value here is cost control and availability—LR optics are often a repeat buy for patching remote sites, fixing spares, or swapping failed links without ripping up the whole design.

That said, I wouldn’t buy this blindly if you’re chasing perfect optics behaviour in a compliance-heavy environment. With third‑party SFPs, the usual risks are not “it won’t work” but edge cases: marginal optics budgets, picky switch/SFP implementations, or DDM/monitoring expectations depending on the exact platform/IOS. If you’re replacing a known-good Cisco optic, sanity-check the original model and confirm your fibre type and reach budget before you order (especially if you’re near the limit). If you’re buying spares for a lab or routine deployment where you’ve verified compatibility on your specific switch, it’s a good buy. If you need guaranteed vendor parity under warranty-style scrutiny, you may want to stick with genuine Cisco.