- VoIP & Phone Systems
How to Choose VoIP Headsets and Hardware for Your Business
18 Mar, 2026
£114.00 inc. VAT
AI-generated summary
For £95.66 ex-VAT, this is a pretty sensible buy **if you specifically need a short-reach 10GBase‑T SFP+ with RJ‑45**. In real deployments, these are typically used to get 10GbE onto existing copper cabling without swapping out patch panels or running new fibre—so if you’ve got equipment with SFP+ cage support and you don’t want the hassle/cost of fibre, this AddOn option can be good value. The “up to 30 m” bit is the right kind of headline for office/SMB structured cabling, and the fact it’s **TAA compliant** matters for UK/US public sector procurement routes.
That said, I wouldn’t buy it blindly. With third‑party transceivers, the main risk is **compatibility/behaviour variance**—some switches are picky about optical/copper modules and you can end up with “it works but link negotiation is flaky” or it simply refuses to initialise. Before you commit, sanity-check your switch model’s published compatibility list (or at least confirm it works with this exact part number in that environment). If you’re in a critical path, or your network vendor support policy is strict, fibre or the OEM-branded equivalent can be cheaper than the downtime you don’t want. If you’re doing general-purpose 10G over copper in a non-hostile distance and you’re okay testing/confirming compatibility, this is the kind of deal that makes sense.

STARTECH
StarTech.com Cisco QSFP-40G-CSR4 Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+ MPO 300m, 850nm DDM, Cisco Firepower ASR9000 - Lifetime Warranty (QSFP-40G-CSR4-ST) - QSFP+ transceiver module (equivalent to: Cisco QSFP-40G-CSR4) - 40GbE - 40GBASE-SR4 - MPO multi-mode - up to 400 m - 850 nm

STARTECH
StarTech.com Cisco Meraki MA-SFP-1GB-LX10 Compatible SFP Module, 1000BASE-LX, 1GbE SMF Optic Transceiver, 1GE Gigabit Ethernet LC Connector, 10km, 1310nm Cisco Meraki MS225, MX400, MS250 - Lifetime Warranty (MASFP1GBLX10) - SFP (mini-GBIC) transceiver module (equivalent to: Juniper SFP-1GE-LX) - 1GbE - 1000Base-LX - LC single-mode - up to 10 km - 1310 nm

STARTECH
StarTech.com Cisco SFP-10G-SR-X Compatible SFP+ Module, 10GBASE-SR, 10GbE MMF Optic Transceiver, LC Connector, 300m, 850nm, DDM, Cisco Firepower, ASR9000, C9300, Mini GBIC Transceiver - Lifetime Warranty (SFP10GSRXST) - SFP+ transceiver module (equivalent to: Cisco SFP-10G-SR-X) - 10GbE - 10GBase-SR - LC multi-mode - up to 300 m - 850 nm

TP-Link
TP-Link TL-SM311LS - SFP (mini-GBIC) transceiver module - fibre optic - LC single-mode - up to 10 km - 1310 nm - for P/N: TL-SG3452XP V1