StarTech.com Cisco SFP-25G-SR-S Compatible SFP28 Module, 25Gbps Multimode Fiber (MMF), 100m (328ft), LC Connector, 850nm, MSA 25 Gigabit Optical Transceiver

Product Overview

AI-generated summary

For £84.67 ex-VAT, this is a pretty sensible buy **if you already know you’ve got a short reach MMF run** and your switches are the kind that play nicely with third‑party optics. StarTech’s 25G SFP28 modules are usually reliable in day-to-day data centre and comms closet use, and 100m is a common “just enough” distance for server-to-switch links or patch-panel runs on multimode fibre. If you’re trying to keep spend down versus genuine Cisco-branded optics, this is the sort of module that often delivers the value you want—assuming the link is in-scope for the transceiver’s compatibility and your fibre is in good shape.

The reason you might **not** buy it: if you’re in a mixed/older optics environment where the switch is picky about vendor/OEM strings, you can hit link negotiation or “not supported” behaviour (even when the optics are physically fine). Also, don’t treat third-party optics as a drop-in for *any* fibre plant—100m multimode works when the cabling is clean and within spec; if you’re near the edge, you’ll just end up with flaky links that are a pain to troubleshoot. Bottom line: **buy it for planned, controlled 25G SFP28-MMF runs where compatibility has been confirmed**; skip it if you need guaranteed plug-and-play across uncertain equipment or you’re troubleshooting an existing unstable link.