AddOn MSA Compliant 1000Base-SX SFP Transceiver - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm

Product Overview

AI-generated summary

For £18.07 ex-VAT, this AddOn 1000Base-SX SFP is the sort of “just works” item you buy when you need spares fast or you’re standardising a bunch of short-reach links. If your environment is properly set up for multi‑mode fibre and you’re connecting to compatible 1GbE switches, it’s an easy, good-value way to restore ports without paying the big-brand markup. The fact it’s MSA compliant is what you want in real life—less faffing with quirky firmware compatibility and fewer “why won’t it link?” days.

That said, I wouldn’t buy these blindly if you’re not sure about your fibre type and reach. Multi‑mode SX is only appropriate for multi‑mode optics; if you’re on single‑mode or your patching/cabling is noisy or long, you’ll see link instability or it simply won’t meet distance expectations. Also, at this price point you should treat them as economical spares for typical data-centre runs, not something I’d bet a mission-critical production core on without a quick validation in your exact switch model. If you tell me the switch make/model and whether your links are multi‑mode (and roughly how far), I can give a tighter “buy / avoid” recommendation.