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Cisco QSFP-40G-LR4-S S-Class LC Single-Mode QSFP+ Transceiver Module

SKU:

QSFP-40G-LR4-S

Weight: 5.00 lbs
Condition: Refurbished
  • 40 Gigabit Ethernet QSFP+ transceiver
  • Single-mode fiber with LC connector
  • Operates up to 10 km over single-mode fiber
  • Complies with IEEE 802.3ba 40GBASE-LR4 standard
In stock

$115.00
Product Overview

The QSFP-40G-LR4-S Cisco transceiver module converts electrical signals into optical signals for 40 Gigabit Ethernet connections over single-mode fiber. It plugs into QSFP+ ports and is designed for links up to 10 kilometers, making it suitable for extended network runs in data centers or campus networks.

General Information
Brand Cisco
Part Number QSFP-40G-LR4-S
Technical Information
Form Factor QSFP+
Media SMF
Type 4 x LAN WDM EML
Power Consumption <=3.5 W (typical ~3.5 W)
Protocols 40GBASE-LR4, IEEE 802.3ba (40G Ethernet), MSA-compliant
Connector LC Duplex
DOM Support Yes
Physical Characteristics
Weight 5.00
Condition Refurbished


Product Description

This QSFP-40G-LR4-S transceiver module enables high-speed 40Gbps data transmission over long distances using single-mode fiber. It is commonly found in enterprise and data center networks where 40G connectivity is needed between switches or routers across building or campus environments.

Built for network engineers and IT professionals, this module fits into QSFP+ slots and converts electrical signals to optical for efficient data transport. It's often used to extend links beyond standard copper or short-reach modules can handle.

Key Features

  • Supports 40 Gigabit Ethernet connections at 10 km reach on single-mode fiber
  • Uses LC duplex connectors for reliable optical interface
  • Compliant with IEEE 802.3ba standards ensuring interoperability
  • Low power consumption suitable for high-density installations
  • Digital diagnostics monitoring allows real-time performance tracking

Typically deployed in data centers and enterprise backbones, this transceiver helps maintain fast and stable network links. Its long-reach capability reduces the need for additional infrastructure, streamlining network design.

The module plays a key role in supporting growing bandwidth demands while providing consistent performance in demanding environments.


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Cisco QSFP-40G-LR4-S S-Class LC Single-Mode QSFP+ Transceiver Module
Cisco QSFP-40G-LR4-S S-Class LC Single-Mode QSFP+ Transceiver Module
$115.00