- Cloud Backup
Backup Automation: Reducing Manual IT Tasks
18 Mar, 2026






£39.52 inc. VAT
AI-generated summary
At **£32.98 ex-VAT**, this is the kind of SFP-to-RJ45 “just make it work” module you buy when you’ve got a switch with spare SFP ports and you need **cheap, 1G copper reach** without rewiring everything. The appeal is simple: you can drop it into an SFP cage and run to a **Cat5e/Cat6** patch lead for short-to-medium distances, which is ideal for patch panel rollouts, access switches, or small server-room links where power and optics costs aren’t worth the faff. If your environment is mostly stable, and you’re not trying to standardise a whole datacentre with strict vendor optics policies, it’s good value.
The downside is also typical for these compatibility modules: **they can be picky** about switch models, firmware, and transceiver compatibility settings. I’d be cautious if you’re buying for a production network where you can’t risk “it works in one switch but not another” moments—especially if your vendor uses tight optics verification. If your switch supports third-party copper SFPs reliably, it’s a sensible buy; if you’re not sure, I’d rather see you **confirm compatibility with your exact switch model** (or buy from the same brand the switch vendor expects) before you commit.

STARTECH
StarTech.com Juniper EX-SFP-10GE-SR Compatible SFP+ Module, 10GBASE-SR, 10GbE Multimode Fiber MMF Optic Transceiver, 10GE Gigabit Ethernet SFP+, LC Connector, 300m, 850nm, DDM, Mini GBIC - Lifetime Warranty (EXSFP10GESRS) - SFP+ transceiver module (equivalent to: Juniper EX-SFP-10GE-SR) - 10GbE - 10GBase-SR - LC multi-mode - up to 300 m - 850 nm

STARTECH
StarTech.com Cisco GLC-EX-SMD Compatible SFP Module, 1000BASE-EX, 1GbE Single Mode (SMF) Fiber SMF Optic Transceiver, 1GbE SFP, LC Connector, 40km, 1310nm, DDM, Firepower, ASR920, IE2000 - Lifetime Warranty (GLCEXSMDST) - SFP (mini-GBIC) transceiver module (equivalent to: Cisco GLC-EX-SMD) - 1GbE - 1000Base-EX - LC single-mode - up to 40 km - 1310 nm

STARTECH
StarTech.com Cisco GLC-SX-MM Compatible SFP Module, 1000BASE-SX, 1GbE Multimode Fiber MMF Optic Transceiver, Gigabit Ethernet SFP, LC Connector, 550m, 850nm, Cisco IE3400, IE3300, IE3200 (SFPGLCSXMMST) - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm - for P/N: ET91000SFP2, ET91000SFP2C, IES101002SFP, MCM1110SFP, PEX1000SFP2

TP-Link
TP-Link TL-SM5110-SR - SFP+ transceiver module - 10GbE - 10GBase-SR - LC/UPC multi-mode - up to 300 m - 850 nm - for JetStream TL-SG3428X, TL-SG3452XP V1