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LR-LINK 40G QSFP+ active optical cable 3 metres with QSFP+ connectors both ends

LR-LINK

LR-LINK QSFP+-AOC-3M 40G QSFP+ Active Optical Cable 3M

SKU CH-S430-MHBKX

A 3-metre active optical cable carrying four full-duplex channels at up to 11.3 Gbit/s each for 40 G Ethernet links

  • TypeNetwork Ethernet Cables
  • 40G total throughput from four 11.3Gbps channels
  • Hot-pluggable QSFP+ form factor enables quick installs
  • Low 1.5W draw cuts rack power costs
  • Light active-optical design replaces heavier copper DACs
  • Works from 0 to 70°C commercial or -40 to 85°C industrial

40G QSFP+ Active Optical Cable 3M

This LR-LINK active optical cable provides a 40G Ethernet link using four full-duplex channels. Each channel runs at up to 11.3Gbit/s for an aggregate 45.2Gbit/s throughput. It targets data-centre operators and network engineers who need a lightweight, hot-pluggable interconnect for rack-level connections.

Practical limits of the QSFP+ 40G interface

The cable complies with the IEEE P 802.3 ba standard and QSFP MSA, drawing under 1.5W from a single 3.3V supply. Commercial operation spans 0 to +70°C while industrial use extends to -40 to +85°C. Maximum reach is defined by the available standard lengths of 3, 15 and 30 metres, so runs beyond 30 metres require a different solution.

Installation notes and common issues

The QSFP+ form factor plugs directly into compatible ports without tools and supports hot insertion. Because the assembly uses multimode fibre with VCSEL arrays, it is lighter and thinner than copper DACs, reducing cable-management strain. The main risk is exceeding the supported length options or operating outside the stated temperature ranges, which can cause link errors.

Highlights

  • 40G total throughput from four 11.3Gbps channels
  • Hot-pluggable QSFP+ form factor enables quick installs
  • Low 1.5W draw cuts rack power costs
  • Light active-optical design replaces heavier copper DACs
  • Works from 0 to 70°C commercial or -40 to 85°C industrial

Specifications

BrandLR-LINK
ModelQSFP+-AOC-3M
TypeNetwork Ethernet Cables

Questions about this item

Which length should I choose for my rack setup?

The cable is available in 3, 15 and 30 metre versions. Choose the shortest length that reaches between your devices to minimise latency and cable bulk.

What does the 45.2 Gbit/s aggregate rate mean for actual throughput?

Four full-duplex channels each run at up to 11.3 Gbit/s, giving a combined 45.2 Gbit/s. Real-world throughput depends on your switch and NIC configuration.

What does the QSFP+ interface cap at in practice?

The QSFP+ MSA form factor supports 40G Ethernet per IEEE 802.3ba, with each of the four channels limited to 11.3 Gbit/s.

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