- VoIP & Phone Systems
How to Set Up VoIP Conferencing and Video Meetings
18 Mar, 2026
£1377.37 inc. VAT
AI-generated summary
For £1,154 ex-VAT, this is the sort of Cisco 100GbE QSFP28 SR transceiver you buy when you *need* Cisco compatibility and you’re deploying in a fixed, validated environment—typically data centres and enterprise networks where optics are treated as “part of the platform,” not generic spares. If your switches are already Cisco and you’ve got existing multi-mode fibre runs within that short reach window, this is a sensible “buy once, install, forget” option. The LC/UPC multi-mode angle and the stated 100m-class intent mean it’s meant for local rack-to-rack or row-to-row use, not long-distance links.
That said, I wouldn’t treat this as a bargain—at this price you’re paying for the brand/entitlement and the peace of mind of Cisco-approved optics. If your network isn’t locked to Cisco, or you’re simply trying to add capacity cheaply, there are often better-value third-party or non-OEM optics that work reliably (assuming your vendor supports them and you can confirm compatibility with your specific switch models/firmware). My advice: buy it if you’re on a Cisco platform that you can’t afford to troubleshoot, and your fibre plant and transceiver budget really match the multi-mode short-reach use case; avoid it if you’re cost-optimising or your switches are known to be fussy with non-OEM modules.

STARTECH
StarTech.com 10 pack HPE J4858C Compatible SFP Module, 1000BASE-SX, 1GbE Multi Mode (MMF) Fiber Optic Transceiver, 1 Gigabit Ethernet SFP, LC Connector, 550m, 850nm, DDM, HPE 1400, 1700, 1820 - Lifetime Warranty (J4858C10PKST) - SFP (mini-GBIC) transceiver module (equivalent to: HP J4858C) - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm (pack of 10) - for HPE 1700, 2610, 6120, Switch XL 10/100/1000, HPE Aruba 2530, 2930F 24, 2930F 48, 5406

Netgear
NETGEAR SFP+ DAC CABLE (1m)

STARTECH
StarTech.com Cisco SFP-25G-LR-S Compatible SFP28 Module, 25GbE Single Mode Fiber (SMF), 1310nm Tx/Rx, LC Connector, 10km (6.2mi), MSA-Compliant - 25GBASE-LR, 25 Gigabit Optical Transceiver, DDM/DOM Support (SFP-25G-LR-S-C-ST) - SFP28 transceiver module (equivalent to: Cisco SFP-25G-LR-S) - 25GbE - 25GBase-LR - LC single-mode - up to 10 km - 1310 nm

STARTECH
StarTech.com MSA Uncoded Compatible SFP Module, 1000BASE-SX, 1GbE Multi Mode (MMF) Fiber Optic Transceiver, 1GE Gigabit Ethernet SFP, LC Connector, 550m, 850nm, DDM, 1Gbps Mini GBIC Module - Lifetime Warranty (SFPSXMM) - SFP (mini-GBIC) transceiver module - 1GbE - 1000Base-SX - LC multi-mode - up to 550 m - 850 nm - for P/N: MCM1110SFP