StarTech.com Cisco SFP-10G-SR-S Compatible SFP+ Transceiver Module - 10GBASE-SR~Cisco SFP-10G-SR-S Compatible SFP+ Module - 10GBASE-SR - 10GbE Multimode Fiber MMF Optic Transceiver - 10GE Gigabit Ethernet SFP+ - LC 300m - 850nm - DDM Cisco Firepower, ASR9000, C9300

Product Overview

AI-generated summary

For £35.50 ex‑VAT, this kind of SFP+ “Cisco compatible” 10G SR optic is usually good value *if* you’re just trying to light up existing multimode fibre links without messing around. StarTech’s stuff is generally reliable in real deployments, and for mainstream gear like Catalyst 9000 / ASR / Firepower lines (assuming your ports support the optic type), it tends to behave like a normal, vendor-style transceiver—especially for short‑reach datacentre runs where multimode and LC connections are already in place. The DDM angle is handy for monitoring optical health, which is more than you can say for the cheapest no-name modules.

That said, I wouldn’t buy it blindly for mission‑critical networks where optics/compatibility strictness matters. Some Cisco platforms can be picky about “compatibility” strings or whether the module is fully recognised—so if you’re standardising across many chassis/locations, do a quick test in the actual hardware before rolling it out. Also, make sure your fibre plant is genuinely multimode and within the intended distance; SR modules aren’t magic if the link budget or fibre type is off. If you want dependable short‑reach 10GbE at sensible cost, this fits. If you need guaranteed vendor-certified behaviour across varied hardware, you may be better paying more for genuine Cisco optics.