CISCO 

QSFP-40G-LR4-S= Cisco 40GBASE-LR4 QSFP Module for SMF

Mfg Part Number:  QSFP-40G-LR4-S=  

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Price: $8,162.70 + Free Shipping
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In Stock: 18
Last Updated: Mar 29, 2026
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The Cisco 40GBASE-LR4 QSFP module supports link lengths of up to 10 kilometer over a standard pair of G.652 single-mode fiber with duplex LC connectors. The QSFP-40G-LR4-S module supports 40GBASE Ethernet rate only. The 40 Gigabit Ethernet signal is carried over four wavelengths. Multiplexing and demultiplexing of the four wavelengths are managed in the device. QSFP-40G-LR4-S does not support FCoE.
Main Specification
General Information
Manufacturer Cisco Systems, Inc
Manufacturer Part Number QSFP-40G-LR4-S=
Manufacturer Website Address http://www.cisco.com
Brand Name Cisco
Product Name QSFP+ Module
Packaged Quantity 1
Product Type QSFP+
Technical Information
Application/Usage Data Networking
Application/Usage Optical Network
Interfaces/Ports
Total Number of Ports 1
Connector Type LC
Interfaces/Ports Details 1 x LC Duplex 40GBase-LR4 Network
Media & Performance
Media Type Supported Optical Fiber
Fiber Mode Supported Single-mode
Ethernet Technology 40 Gigabit Ethernet
Network Technology 40GBase-LR4
Maximum Data Transfer Rate 40
Physical Characteristics
Form Factor Hot-swappable
Form Factor Plug-in Module
Height 0.5"
Width 0.7"
Depth 2.9"
Weight (Approximate) 0.22 lb
Miscellaneous
Compatibility MSA Compliant
product information
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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