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How to Back Up Your Business Phone System
9 Mar, 2026



£361.51 inc. VAT
AI-generated summary
This is the kind of SFP you buy when you already have Dell switching gear that expects Dell-compatible optics and you just want it to work—nothing more, nothing less. At £301.26 ex-VAT, it’s not “cheap optics,” so I’d only recommend it if you actually need that 1310nm single-mode style (or whatever your link budget/design calls for). In the real world, the best value from this sort of module comes when it’s a drop-in replacement for an existing Dell setup, so you avoid downtime and the usual faff of compatibility quirks.
Who should buy it: IT managers/support teams maintaining Dell fibre networks in the UK who need a reliable spare for an SFP slot on Dell switches, especially where “it must work first time” matters more than saving a few quid. Who should avoid it: if you’re building new links, you’re cost-sensitive, or you don’t specifically need Dell’s optics—there are often less expensive options if your hardware supports them and you verify compatibility properly. If you’re not sure, spend five minutes checking the exact model/spec your switch expects; buying the wrong optics at this price is an expensive lesson.

STARTECH
StarTech.com MSA Uncoded Compatible SFP Module, 1000BASE-LX, 1GbE Single Mode (SMF) Fiber Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 10km, 1310nm, DDM, Mini GBIC Module - Lifetime Warranty (SFP1000LXST) - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-LX - LC single-mode - up to 10 km - 1310 nm - for P/N: US1GA30SFP, US1GC30SFP

STARTECH
StarTech.com Cisco GLC-TE Compatible Module, 1000BASE-T Copper Industrial Gigabit Ethernet Transceiver, SFP to RJ45 Cat6/Cat5e 100m Extended Temp, Cisco Firepower, IE 2000, C9500, C2960 - Lifetime Warranty (GLCTEST) - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-TE) - 1GbE - 1000Base-T - RJ-45 - up to 100 m

STARTECH
StarTech.com Arista Networks SFP-10G-LR Compatible SFP+ Module, 10GBASE-LR, 10GbE Single Mode Fiber SMF Optic Transceiver, 10GE Gigabit Ethernet SFP+, LC 10km, 1310nm, DDM, Mini GBIC SFP+ - Lifetime Warranty (AR-SFP-10G-LR-ST) - SFP+ transceiver module (equivalent to: Arista Networks SFP-10G-LR) - 10GbE - 10GBase-LR - LC single-mode - up to 10 km - 1310 nm

STARTECH
StarTech.com Juniper EX-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 Module - Lifetime Warranty (EXSFP1GESXST) - SFP (mini-GBIC) transceiver module (equivalent to: Juniper EX-SFP-1GE-SX) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm