- Cyber Security
Vulnerability Scanning for Cyber Essentials Plus: A Practical Guide
24 Jun, 2026





£300.44 inc. VAT
AI-generated summary
If you’re running legacy HPE switches/gear that take an **SFP (J4859C-style) 1GbE LX** module, this is a perfectly sensible, cost-controlled option. At **£250.78 ex-VAT for the 10-pack**, it’s the kind of buy-you-can-forget about—especially if you’re maintaining multiple sites or stocking spares. The fact it’s **DDM** is genuinely useful in day-to-day operations; you can spot optics drift early instead of waiting for mystery link drops.
That said, I’d only buy this if your environment is clearly aligned: **single-mode vs multi-mode** needs to be correct for your cabling, and you should confirm you actually need the **10km-class LX** behaviour (otherwise you’re paying for capability you don’t use). Also, don’t assume “compatible” means “interchangeable with zero caveats” in every HPE model—your best move is to check compatibility against the specific switch series/firmware you’re using and test one module before deploying the whole batch. If you’re chasing maximum reliability for critical links, it’s not that I’d avoid it outright—it’s that I’d validate first and then scale.

STARTECH
StarTech.com Extreme Networks 10051 Compatible SFP Module, 1000BASE-SX, 1GbE Multimode Fiber MMF Optic Transceiver, 1GE Gigabit Ethernet SFP, LC 550m, 850nm, DDM, Mini GBIC - Lifetime Warranty (10051-ST) - SFP (mini-GBIC) transceiver module (equivalent to: Extreme Networks 10051) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm - for Summit 24e3, Alpine 3802, Extreme Networks GM-16T3, GM-16X3

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

STARTECH
StarTech.com HPE J9152D Compatible SFP+ Module, 10GBASE-LRM, 10GbE Multi Mode (MMF) Fiber Optic Transceiver, 10GE Gigabit Ethernet SFP+, LC Connector, 200m, 1310nm, DDM, HPE 1850, 2540, 2930M, - Lifetime Warranty (J9152D-ST) - SFP+ transceiver module (equivalent to: HP J9152D) - 10GbE - 10GBase-LRM - LC multi-mode - up to 200 m - 1310 nm - for HPE Aruba 2530, 2920, 2930M 24, 3800, 3810M 40, 3810M 48, 6200M 24, MACsec Advanced Module

STARTECH
StarTech.com Juniper CTP-SFP-1GE-SX Compatible SFP Module, 1000BASE-SX, 1GbE Multimode Fiber MMF Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 550m, 850nm, DDM, Mini GBIC - Lifetime Warranty (CTPSFP1GESXS) - SFP (mini-GBIC) transceiver module (equivalent to: Juniper CTP-SFP-1GE-SX) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm