StarTech.com Extreme Networks 10320 Compatible QSFP+ Module - 40GBASE-LR4 - Single Mode Fiber (SMF) - 40GE Gigabit Ethernet QSFP+ - LC 6.2 mi - 1270nm to 1330nm - DDM~Extreme Networks 10320 Compatible QSFP+ Module - 40GBASE-LR4 - Single Mode Fiber (SMF) - 40GE Gigabit Ethernet QSFP+ - LC 10 km - 1270nm to 1330nm - DDM

Product Overview

AI-generated summary

This is a decent choice if you’ve got a compatible Extreme Networks 10320 and you specifically need 40GBASE-LR4 over single‑mode with LC optics. At £123.78 ex‑VAT it’s priced like a practical “keep the network running” part rather than a premium spend. The real-world win is simplicity: if your switch accepts the module type, you avoid the downtime and hassle of waiting for official spares. And the fact it has DDM/telemetry means you’ll get the kind of monitoring you actually want when you’re running fibre links day-to-day.

That said, I wouldn’t buy this blindly. The biggest risk with third‑party optics isn’t performance—it’s compatibility and firmware acceptance. Make sure it’s explicitly supported for your exact Extreme platform and software version (and that the receiving end is matched for LR4). Also, fibre distance matters: if you’re right at the edge of budget, any dirty patching or slightly off optics can turn “works fine” into intermittent pain, so don’t treat it as a magic 10 km guarantee without good fibre hygiene and proper link testing.

Who should buy it: IT teams maintaining Extreme 10320 deployments who need a reliable LR4 replacement and want good value. Who shouldn’t: anyone ordering optics as a gamble, or anyone without a process for verifying compatibility and testing links after install.