CISCO 

CISCO QSFP-40G-ER4-RF QSFP 40GBASE-ER4 TRANSCEIVER MODULE, LC,

Mfg Part Number:  QSFP-40G-ER4-RF  
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Price: $19,273.38 + Free Shipping
Quantity:
In Stock/Mfg Direct Ship
Last Updated: Jun 20, 2026
No Sales Tax except these states
, PO and Wire.
The Cisco® 40GBASE QSFP (Quad Small Form-Factor Pluggable) portfolio offers customers a wide variety of high-density and low-power 40 Gigabit Ethernet connectivity options for data center, high-performance computing networks, enterprise core and distribution layers, and service provider applications.
Main Specification
General Information
Manufacturer Cisco Systems, Inc
Manufacturer Part Number QSFP-40G-ER4-RF
Manufacturer Website Address http://www.cisco.com
Brand Name Cisco
Product Name 40GBASE-ER4 Module for SMF with OTU-3 Data-Rate Support
Product Condition Refurbished
Product Type QSFP
Technical Information
Application/Usage Optical Network
Application/Usage Data Networking
Interfaces/Ports
Total Number of Ports 1
Connector Type LC
Interfaces/Ports Details 1 x LC 40GBase-ER4 Network
Media & Performance
Media Type Supported Optical Fiber
Fiber Mode Supported Single-mode
Ethernet Technology 40 Gigabit Ethernet
Network Technology 40GBase-ER4
Physical Characteristics
Form Factor Hot-swappable
Height 0.5"
Width 0.7"
Depth 2.9"
Weight (Approximate) 0.22 lb
Miscellaneous
Compatibility MSA Compliant
Warranty
Limited Warranty 1 Year

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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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