- Virtual CIO
How to Plan IT for an Office of 50 to 200 Staff
18 Mar, 2026
£76.66 inc. VAT
AI-generated summary
For £63.79 ex‑VAT, this AddOn Extreme SFP+ (10GBase‑SR, LC multimode) is a pretty decent “keep-the-lights-on” option—especially if you’re topping up an existing fibre run where you already know you’re using multimode and LC connectors. In real offices/SMB environments, these short‑reach modules are usually the unglamorous heroes: they’re cheap enough to carry spares, and they typically just work as long as the switch/stack is happy with compatible optics. If you’ve got patch panels and a structured multimode backbone, this is the sort of module you buy when you want reliable connectivity without paying enterprise licence money for branding.
That said, I wouldn’t buy it blindly if you’re trying to solve a “mystery” distance problem or if the installation is mixed/unknown: SR is inherently a short‑reach play, and multimode optics can fall apart quickly if your fibre type, attenuation, or patching is off. Also, compatibility is the only real risk with third‑party optics—some switches are picky about vendor/firmware handshake. If you can confirm it’s supported in your specific switch model (or at least the switch is known to play nicely with AddOn), then it’s good value; if not, spend the extra and avoid downtime debugging.
Who should buy: UK SMBs and resellers with multimode LC 10GbE links who want cost-effective spares and straightforward reach. Who should avoid: anyone with single-mode runs, unclear fibre provenance, or switches that you know don’t like non-branded SFP+ modules.

Lenovo
QLogic 10Gb SFP+ SR Optical Transceiver - SFP+ transceiver module - 10GbE - 10GBase-SR - for Converged HX2310, Storage DX8200, System x3100 M5, x3250 M4, x3250 M6, ThinkSystem SR250

Lenovo
Lenovo - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-SX - LC - for Flex System SI4091

STARTECH
StarTech.com MSA Uncoded Compatible SFP+ Module, 10GBASE-SR, 10GbE Multi Mode (MMF) Fiber Optic Transceiver, 10GE Gigabit Ethernet SFP+, LC Connector, 300m, 850nm, DDM, Mini GBIC Module - Lifetime Warranty (SFP10GBSRST) - SFP+ transceiver module - 10GbE - 10GBase-SR - LC multi-mode - up to 300 m - 850 nm

Lenovo
Lenovo - SFP+ transceiver module - iSCSI - 10GBase-SW - for Storage S2200 6411, S3200 6411