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£47.40 inc. VAT
AI-generated summary
For £39.56 ex-VAT, this looks like the kind of no-drama SFP you buy when you just need the link to come up—especially if you’re maintaining a mixed network where you don’t want to spend “brand tax.” The fact it’s MSA-compliant and mentions DDM is the big practical win: most of the time it’ll play nicely with mainstream switches, and DDM means you can actually monitor optics/laser health rather than just hoping for the best. If you’ve got 1GbE single-mode runs around that ~10km class of distance, this is a sensible, cost-controlled replacement or spares option.
That said, I wouldn’t buy this blindly if you’re chasing a very specific vendor interoperability requirement or you’re trying to use it in a niche environment. With any third-party optic, the real risk isn’t the basics—it’s whether your exact switch model is picky about optics/threshold behaviour. Before committing, check your switch’s compatibility list (or ask what they’ve seen work in-house) and confirm the wavelength/fibre type matches your existing plant. If you need “guaranteed for everything everywhere” support, you may end up paying more for OEMs—but for straightforward 1GbE SMF links where you’re comfortable verifying compatibility, it’s hard to argue against the value.

Dell
Dell - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm - for Force10, Networking C7004, C7008, S5000, PowerEdge VRTX, PowerSwitch N1524

STARTECH
StarTech.com MSA Uncoded Compatible SFP Module, 1000BASE-TX, SFP to RJ45 (Copper) Cat6/Cat5e, 1GE Gigabit Ethernet SFP, RJ-45 (Copper) 100m, 1Gbps/1000Mbps Mini GBIC Transceiver SFP Module - Lifetime Warranty (SFP1000TXST) - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-TX - RJ-45 - up to 100 m

STARTECH
StarTech.com MSA Uncoded Compatible SFP Module, 100BASE-FX, 100MbE Multi Mode (MMF) Fiber Optic Transceiver, 100Mb Ethernet SFP, LC Connector, 2km, 1310nm, DDM, Mini GBIC Module, 100Mbps - Lifetime Warranty (SFP100BFXST) - SFP (mini-GBIC) transceiver module - 100Mb LAN - 100Base-FX - LC multi-mode - up to 2 km - 1310 nm - for P/N: US100A20SFP

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