StarTech.com HPE JG325A Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multi Mode Fiber Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM HPE 5900AF, 11908, FlexFabric

Product Overview

AI-generated summary

For £29.30 ex-VAT, this is the kind of “cheap-but-does-the-job” optic you buy when you just need to get a link up and you don’t want to pay enterprise-module pricing. If you’re running compatible HPE networking gear (and this is clearly aimed at that world), a QSFP+ SR4 multimode module with DDM support is exactly what you want for short-reach fibre inside a building. The MPO + 150m angle is also pretty sensible for typical comms-room/campus runs where you’d rather not rely on long fibre spans.

That said, I wouldn’t buy it if you’re the kind of person who hates troubleshooting. Fibre optics live and die by compatibility, fibre type, and patching—so make sure your transceiver’s wavelength/fibre type matches your multimode plant, and don’t assume “150m” will work in the real world without checking link budget and fibre quality. Also, if you’re building something mission-critical and HPE-branded modules are your standard, you may prefer OEM for peace of mind—but for cost-sensitive teams who can verify the installation, this is a good value pick.