- Internet & Connectivity
The Complete Guide to Business Broadband in the UK
18 Mar, 2026





£27.55 inc. VAT
AI-generated summary
For £22.98 ex-VAT, this kind of compatible StarTech SFP is a pretty decent “get it working” option—especially if you’re trying to bring a link back up without paying Dell’s usual premium. If your network already supports that speed/type and you’re on multimode fibre with LC connectors, it tends to behave like a standard 1GbE SX module in real life: plug in, negotiate cleanly, and you’re done. The “DDM” bit is the sort of practical feature you actually notice later when you’re troubleshooting—being able to see optical levels can save time when links start getting flaky.
That said, I wouldn’t buy these blindly. The biggest reason people waste time is mismatch: wrong fibre type, wrong distance class for their patching/trunk, or a switch model that’s picky about third‑party optics. If you need guaranteed compatibility across multiple switch models, Dell’s own modules (or a brand your switch vendor explicitly lists) will be less hassle. But if you’re maintaining a fairly stable homogenous setup and you just want cost-effective spares for existing SX multimode links, this is exactly the sort of sensible, budget-friendly purchase it’s meant for.

STARTECH
StarTech.com Dell EMC SFP-1G-T Compatible SFP Module, 1000BASE-T, SFP to RJ45 (Copper) Cat6/Cat5e, 1GE Gigabit Ethernet SFP, RJ-45 (Copper) 100m, 1Gbps Mini GBIC Transceiver SFP Module - Lifetime Warranty (SFP1GTEMCST) - SFP (mini-GBIC) transceiver module (equivalent to: Dell EMC SFP-1G-T) - 1GbE - 1000Base-T - RJ-45 - up to 100 m

STARTECH
StarTech.com HPE 813874-B21 Compatible SFP+ Module, 10GBASE-T, SFP to RJ45 Cat6/Cat5e, 10GE Gigabit Ethernet SFP+, RJ-45 (Copper) 30m, HPE BladeSystem, c-Class, Mini GBIC SFP+ Transceiver - Lifetime Warranty (813874B21ST) - SFP+ transceiver module (equivalent to: HP 813874-B21) - 10GbE - 10GBase-T - RJ-45 - up to 30 m

STARTECH
StarTech.com Juniper EX-SFP-10GE-LR Compatible SFP+ Module, 10GBASE-LR, 10GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 10GE Gigabit Ethernet SFP+, LC Connector, 10km, 1310nm, DDM - Lifetime Warranty (EXSFP10GELRS) - SFP+ transceiver module (equivalent to: Juniper EX-SFP-10GE-LR) - 10GbE - 10GBase-LR - LC single-mode - up to 10 km - 1310 nm

STARTECH
StarTech.com MSA Uncoded SFP Module, 1000BASE-BX, 1 Gigabit Ethernet Bi-Directional (BiDi) Fiber Single Strand SFP Transceiver (SMF), LC 10km , Mini GBIC Transceiver SFP Module, Upstream - Lifetime Warranty (SFP1000BXUST) - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-BX - LC single-mode - up to 10 km - 1310 (TX) / 1490 (RX) nm