StarTech.com Dell EMC SFP-1G-BX40-U Compatible SFP Module - 1000BASE-BX-U - 1 GbE Gigabit Ethernet BiDi Fiber (SMF)

Product Overview

AI-generated summary

For £12.48 ex-VAT, this is the kind of “just make it work” SFP you buy when you’ve got a short, single-purpose BiDi link and you don’t want to pay branded OEM money. StarTech-compatible optics are usually fine in day-to-day networking, especially in older/routine environments where the compatibility checks aren’t overly picky. If you’re a reseller or an IT team maintaining lots of small sites and you need spares in the cupboard, this is decent value.

That said, I wouldn’t treat it like a universal, risk-free replacement for every Dell EMC SFP scenario. SFP compatibility can be picky depending on the switch model/firmware and how your optics are monitored (some platforms complain more than others). Also, BiDi optics are easy to get wrong if you don’t already have the right fibre pair and wavelength plan in place—if the link doesn’t come up, it’s often cabling/config rather than the module itself. Buy this if you’ve verified the module type matches your existing BiDi setup and you’re comfortable troubleshooting optics/cabling; skip it if you’re trying to “upgrade everything” without confirming your platform’s compatibility first.