StarTech.com Citrix EG3B0000087 Compatible SFP Module - 1000BASE-T - SFP to RJ45 Cat6/Cat5e - 1GE Gigabit Ethernet SFP - RJ-45 100m

Product Overview

AI-generated summary

If you’ve got a real reason to convert a fibre/SFP slot into copper, this StarTech SFP-to-RJ45 module is a sensible, low-cost way to do it. At ~£34.85 ex-VAT it’s priced like an “ops” part rather than a premium network component, so it’s best when you’re trying to get one link working reliably without swapping the whole switch. The 100m claim (Cat6/Cat5e) is the sort of distance most office cabling will hit comfortably, and for simple access links (e.g., office patching, small lab setups, spare/backup ports) it’s exactly what you want: straightforward Gigabit, no drama.

That said, I wouldn’t buy it if you’re doing anything mission-critical on a core/aggregation design where optics compatibility quirks matter. SFPs are generally tolerant, but you can still run into “it works in one switch, not another” situations depending on the vendor/model and whether your switch is picky about third-party modules. Also, if you’re doing lots of ports, the per-port cost adds up quickly versus just designing around copper vs fibre properly. Bottom line: great for occasional copper expansion from an SFP-equipped switch where you need value and convenience—less great if you need guaranteed compatibility across specific enterprise platforms or you’re scaling heavily.