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Cisco QSFP-40GE-LR4 Compatible 40GBASE-LR4 QSFP+ Optical Transceiver Module (SMF, 1310nm, 10km, LC, DOM)

SKU:

QSFP-40GE-LR4

Weight: 5.00 lbs
Brand Name: Cisco
Condition: Refurbished
  • 40GBASE-LR4 QSFP+ optical transceiver for high-speed data transfer
  • Single-mode fiber (SMF) compatible with a 1310nm wavelength
  • Transmission distance up to 10 kilometers via LC duplex connectors
  • Digital Optical Monitoring (DOM) support for real-time status
In stock

$373.00
Product Overview

The QSFP-40GE-LR4 Cisco-compatible optical transceiver offers 40Gbps data transmission over single-mode fiber up to 10 kilometers. Designed for use in high-performance networks, it fits QSFP+ ports and supports key monitoring features to ensure smooth operation in demanding environments.

General Information
Brand Cisco
Part Number QSFP-40GE-LR4
Technical Information
Form Factor QSFP+
Media SMF
Type 4 x LAN WDM EML
Power Consumption ≤3.5W
Protocols OTN OTU3, 40G Ethernet, Fiber Channel, SATA/SAS3, MSA Compliant
Connector LC Duplex
DOM Support Yes
Physical Characteristics
Weight 5.00
Condition Refurbished


Product Description

This QSFP-40GE-LR4 module provides reliable 40 Gigabit Ethernet connectivity over single-mode fiber. It's often found in data centers and enterprise networks where long-distance, high-bandwidth links are necessary.

Built for network engineers and IT professionals, it supports fast data transport for backbone and aggregation layers. The module fits into QSFP+ ports on compatible Cisco switches and routers.

Key Features

  • Operates at a 1310nm wavelength optimized for long-reach fiber runs
  • Supports link distances up to 10 kilometers without additional equipment
  • LC duplex connectors ensure easy integration with standard SMF cabling
  • Includes Digital Optical Monitoring to track power levels and temperature
  • Compliant with 40GBASE-LR4 IEEE standards for broad interoperability

This transceiver is typically deployed in large-scale network infrastructure, connecting switches across buildings or campuses. Its robust design helps maintain stable high-speed links where distance and reliability matter most.


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Cisco QSFP-40GE-LR4 Compatible 40GBASE-LR4 QSFP+ Optical Transceiver Module (SMF, 1310nm, 10km, LC, DOM)
Cisco QSFP-40GE-LR4 Compatible 40GBASE-LR4 QSFP+ Optical Transceiver Module (SMF, 1310nm, 10km, LC, DOM)
$373.00