- Cyber Security
Cloud Services and Cyber Essentials Plus: What Counts?
18 Jun, 2026







£293.40 inc. VAT
AI-generated summary
If you’re running an office-sized fibre network and you just need dependable 1GbE SFPs without paying Cisco “brand tax”, this StarTech-compatible GLC-SX option is a sensible buy. The fact it’s offered as a 10-pack is where it usually makes the most financial sense: you’re buying spares for field swaps and planned refreshes, so you’re not gambling on single-unit pricing. In day-to-day use, these transceivers are typically “plug, link up, forget” for supported Cisco platforms, and DDM support is helpful when you want visibility on optics health rather than waiting for outages.
That said, I wouldn’t buy these if you’re chasing maximum compatibility certainty across a mixed or heavily upgraded environment. “Compatible with” can be fine, but real-world behaviour depends on the switch firmware and optics policy—so if you’ve got any doubt about platform matching (or you’re standardising across multiple models), it’s worth checking your exact switch part/firmware compatibility first. Also, don’t overthink the name: it’s for multimode links within the distance it’s designed for—if your cabling runs are longer or you’re using different fibre types, you’ll just waste time and money. At ~£244.90 ex-VAT for ten, it’s good value for the right job: Cisco IE/ME gear on appropriate MMF, with a need for spare capacity and straightforward operations.

TP-Link
TP-Link DS-PMA-C+ V1 - SFP (mini-GBIC) transceiver module - GPON C+ - SC/UPC single-mode - up to 20 km - 1490 (TX) / 1310 (RX) nm

STARTECH
StarTech.com Dell EMC SFP-1G-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 (SFP1GSXEMCST) - SFP (mini-GBIC) transceiver module (equivalent to: Dell EMC SFP-1G-SX) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm

STARTECH
StarTech.com HPE 455886-B21 Compatible SFP+ Module, 10GBASE-LR, 10GbE Single Mode (SMF) Fiber Optic Transceiver, LC 10km, 1310nm DDM, HPE BladeSystem 562SFP+ 560SFP+, Mini GBIC Transceiver - Lifetime Warranty (455886-B21-ST) - SFP+ transceiver module (equivalent to: HP 455886-B21) - 10GbE - 10GBase-LR - LC single-mode - up to 10 km - 1310 nm - for HPE SimpliVity 380 Gen10 Node, 380 Gen9 Node, Virtual Connect Flex-10

STARTECH
StarTech.com Cisco SFP-10G-LR-S Compatible SFP+ Module, 10GBASE-LR, 10GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 10GbE SFP+ LC Connector, 10km, 1310nm, DDM, Cisco Firepower, ASR9000 - Lifetime Warranty (SFP10GLRSST) - SFP+ transceiver module (equivalent to: Cisco SFP-10G-LR-S) - 10GbE - 10GBase-LR - LC single-mode - up to 10 km - 1310 nm