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Wireless Site Surveys: Why They Matter for Wi-Fi Performance
14 Nov, 2025





£45.30 inc. VAT
AI-generated summary
At £37.81 ex-VAT, this is the kind of SFP you buy when you just need the link to come up reliably and you don’t want to pay “Cisco tax.” StarTech’s compatible optics are usually a decent value in day-to-day reseller environments—especially for standard single‑mode 1GbE runs where you’re not doing anything exotic. If you’ve got an existing Cisco setup (or Cisco-branded gear) that supports the module you’re targeting, this should be a cost-effective drop-in for keeping spare stock on the shelf.
That said, I’d buy it with eyes open: compatible modules can be more hit-and-miss than genuine optics, and optics compatibility can depend on the exact platform/firmware. If you’re supporting mission-critical links, the safest approach is to test it in a maintenance window first (or confirm your specific switch/router model is happy with that exact optic type). For anyone doing a lot of change-outs across mixed hardware, genuine optics can be less hassle—even if they cost more. But for a predictable, single‑mode 1GbE span and teams who can validate compatibility, this is good value and hard to argue with.

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

Dell
Dell - Kit - SFP+ transceiver module - 10GbE - 10GBase-SR - up to 300 m - 850 nm - for Networking N1148, PowerSwitch S4112, S5212, S5232, S5296, Networking N3024, N3048, X1052

STARTECH
StarTech.com MSA Uncoded Compatible SFP Module, 100BASE-LX, 100MbE Single Mode (SMF) Fiber Optic Transceiver, 100Mb Ethernet SFP, LC Connector, 10km, 1310nm, DDM, Mini GBIC Module, 100Mbps - Lifetime Warranty (SFP100BLXST) - SFP (mini-GBIC) transceiver module - 100Mb LAN - 100Base-LX - LC single-mode - up to 10 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