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Brocade 40G QSFP+ transceiver module, rectangular metal housing, gold edge connector, pull-tab latch, new condition

Brocade

Brocade 40G-QSFP-LM4 40G QSFP+ transceiver

SKU CH-71EQ-T8M8F MPN 40G-QSFP-LM4

A 40 Gigabit Ethernet QSFP+ transceiver for Brocade VDX 6740, 6740T, 6940-36Q, 8770-4 and 8770-8 switches

  • Product weight0.2
  • 40 Gbps LM4 transceiver for high-speed data-centre links
  • QSFP+ form factor fits Brocade 40 GbE switches and routers
  • Certified Brocade optics reduce incompatibility risk
  • Supports VDX 6740, 6740T, 6940-36Q, 8770-4 and 8770-8
  • Lightweight 0.2 kg module simplifies installation

40 Gbps QSFP+ LM4 transceiver

This Brocade 40G-QSFP-LM4 module delivers 40 Gigabit Ethernet connectivity over single-mode fibre using the 40GBASE-LM4 standard. It is designed for data-centre links that require longer reach than short-range optics provide. The transceiver weighs .2 units and uses the standard QSFP+ form factor. It targets network engineers extending Brocade fabrics across campus or metro distances.

Fits VDX 6740, 6740T, 6940-36Q.

The module is qualified for Brocade VDX 6740, 6740T, 6940-36Q, 8770-4 and 8770-8 platforms. Operators running other Brocade switches or third-party hardware should verify vendor support before deployment. Buyers who need compatibility with non-listed equipment should look at a different transceiver.

40GBASE-LM4 reach specification

The single specification that decides fit is the 40GBASE-LM4 optical interface, which defines wavelength, reach and fibre-type requirements for the link. If the planned connection demands a different reach or multimode fibre, this transceiver will not meet the requirement.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $3,446.99
Pricier than about 91% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameBrocade
Model name40G-QSFP-LM4
Size & build
Shipping weight0.23 kg
Package size245 × 130 × 36 mm

Questions about this item

What does the 40GBase-LM4 interface limit in practice?

The 40GBase-LM4 interface carries 40 Gigabit Ethernet over multimode fibre with a reach limited to the LM4 distance specification.

Which Brocade switches accept this QSFP+ module?

Compatible with Brocade VDX 6740, 6740T, 6940-36Q, 8770-4 and 8770-8 switches.

How is the transceiver installed and what step is often missed?

Slide the module into a QSFP+ port until it clicks, then insert the LC duplex cable fully; forgetting to remove the dust caps blocks the optical path.

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