StarTech.com Dell EMC SFP-10G-BX40-D Compatible SFP+ Module - 10GBASE-BX-D - 10 GbE Gigabit Ethernet BiDi Fiber (SMF)

Product Overview

AI-generated summary

At £26.10 ex-VAT for a BiDi SFP+ that’s sold as “Dell EMC compatible,” this is the kind of part you buy when you just need the link back up and you don’t want to pay the premium for OEM optics. For most day-to-day deployments—short-reach single-mode runs, patch panels already sorted, and a switch environment that’s happy with third‑party optics—this can be excellent value. The main “real world” benefit is exactly what you’d expect: it’s a straightforward replacement/upgrade optic where you’re swapping modules, not redesigning the network.

That said, I wouldn’t buy it blindly if you’re running mission-critical links and you don’t have a tested path for compatible optics in your specific Dell EMC switch model/firmware. BiDi modules can be picky about wavelength pairing and the transmit/receive direction, and if your cabling plan isn’t already correct (or your vendor insists on OEM-only), you may end up troubleshooting for longer than the module cost saved you. If you’re a reseller supporting customers with mixed hardware, this is a good “spares and restore” item—just confirm the switch’s compatibility with third-party SFP+ and match the BiDi wavelengths/direction to your existing fibre before purchasing.