StarTech.com Cisco GLC-LH-SMD Compatible SFP Transceiver Module - 1000BASE-LX/LH~Cisco GLC-LH-SMD Compatible SFP Module - 1000BASE-LX/LH - 1GbE Single Mode Fiber SMF Optic Transceiver - 1GE Gigabit Ethernet SFP - LC 10km - 1310nm - DDM Cisco Firepower, ASR920, IE2000

Product Overview

AI-generated summary

At £37.81 ex-VAT, this is the kind of SFP you buy when you just need the link to come up reliably and you don’t want to pay “Cisco tax.” StarTech’s compatible optics are usually a decent value in day-to-day reseller environments—especially for standard single‑mode 1GbE runs where you’re not doing anything exotic. If you’ve got an existing Cisco setup (or Cisco-branded gear) that supports the module you’re targeting, this should be a cost-effective drop-in for keeping spare stock on the shelf.

That said, I’d buy it with eyes open: compatible modules can be more hit-and-miss than genuine optics, and optics compatibility can depend on the exact platform/firmware. If you’re supporting mission-critical links, the safest approach is to test it in a maintenance window first (or confirm your specific switch/router model is happy with that exact optic type). For anyone doing a lot of change-outs across mixed hardware, genuine optics can be less hassle—even if they cost more. But for a predictable, single‑mode 1GbE span and teams who can validate compatibility, this is good value and hard to argue with.