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StarTech. com QSFP-40G-ESR4-ST MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4 - 40 Gbps Multi-Mode Fiber - LC Connector - 300m

SKU: QSFP-40G-ESR4-ST
UPC: 065030886352
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MSRP: $75.99
$76.95
$62.95
Save: $13.04 (16.95%)
Warranty Information: Lifetime
Condition: New
Width: 1.23 (cm)
Height: 1.23 (cm)
Depth: 1.23 (cm)
Availability: Canada: Very Limited Supply
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Product Features

Description

Product Overview

The StarTech.com QSFP-40G-ESR4-ST is a high-performance QSFP+ transceiver module engineered for 40 Gigabit Ethernet deployments in data centers and enterprise networks. This MSA compliant module delivers reliable 40 Gbps connectivity over multi-mode fiber, supporting the 40GBASE-SR4 standard for efficient optical networking.

Designed with a hot-swappable form factor, this transceiver enables seamless integration into compatible switches and routers without network downtime. The LC connector interface ensures secure fiber optic connections, while the 300-meter reach over multi-mode fiber provides flexibility in network design and cable runs.

Signal
LC
Signal Type
Ports: 1Hot-swappable
Network Performance
Ethernet Technology40 Gigabit Ethernet
Network Technology40GBASE-SR4
Data Rate40 Gbps
Fiber Connectivity
Fiber ModeMulti-mode
Connector TypeLC
Maximum Distance300m
Physical & Compatibility
Form FactorHot-swappable QSFP+
CompatibilityMSA Compliant
WarrantyLifetime

Technical Overview

This transceiver operates at 850nm wavelength and implements the 40GBASE-SR4 protocol, which uses parallel optics technology to achieve 40 Gbps throughput. The module features a single LC port that supports 40GBase-SR4 network connections, making it suitable for high-bandwidth applications requiring multi-mode fiber infrastructure.

Built to Multi-Source Agreement (MSA) standards, the QSFP-40G-ESR4-ST ensures interoperability with MSA compliant networking equipment. The hot-swappable design allows for easy installation and replacement while maintaining network availability during maintenance operations.

Port Count1
Fiber TypeMulti-mode
Wavelength850nm
MSA CompliantHot-swappableLC Connector

Key Product Advantages

This QSFP+ transceiver delivers dependable 40GbE connectivity with full MSA compliance, ensuring reliable performance in compatible network environments. The module is programmed and tested to work with MSA uncoded switches and routers, providing peace of mind for network administrators.

High-Speed Connectivity

Delivers 40 Gbps throughput for demanding network applications, supporting data-intensive workloads and high-bandwidth traffic.

  • 40 Gigabit Ethernet
  • 40GBASE-SR4 protocol
  • Parallel optics technology

Reliable Fiber Performance

Engineered for multi-mode fiber networks with LC connectors, providing secure optical connections and 300-meter reach for flexible deployment.

  • Multi-mode fiber support
  • LC connector interface
  • 300m maximum distance

Deployment / Use Cases

The QSFP-40G-ESR4-ST transceiver is ideal for 40GbE network upgrades in data centers, enterprise backbone connections, and high-performance computing environments. It serves as a critical component for connecting switches, routers, and servers over multi-mode fiber infrastructure.

Common deployment scenarios include spine-leaf architectures in data centers, aggregation layer connections in enterprise networks, and high-speed interconnects for storage area networks. The module's 300-meter reach supports various cable run requirements while maintaining signal integrity.

Data Center Interconnects

Connect top-of-rack switches to aggregation switches or core routers in modern data center designs, enabling high-bandwidth east-west traffic flows.

Network Backbone Upgrades

Upgrade existing 10GbE backbone connections to 40GbE for increased throughput, supporting growing bandwidth demands and reducing network congestion.

[custom-highlights]

Highlights

  • MSA compliant QSFP+ transceiver for 40 Gigabit Ethernet networks
  • 40GBASE-SR4 protocol support with 40 Gbps data rate
  • Multi-mode fiber connectivity with LC connector interface
  • 300-meter maximum reach over multi-mode fiber
  • Hot-swappable form factor for easy installation and maintenance
  • 850nm wavelength operation for optical networking
  • Designed for data networking and optical network applications
  • Lifetime warranty for long-term reliability assurance
[/custom-highlights][custom-specifications]

Specifications

Specifications
ManufacturerStarTech.com
Manufacturer Part NumberQSFP-40G-ESR4-ST
Brand NameStarTech.com
Product NameMSA Compliant QSFP+ Transceiver Module - 40GBase-SR4
Product TypeQSFP+
Technical Information
Application/UsageOptical Network,Data Networking
Interfaces/Ports
Total Number of Ports1
Connector TypeLC
Interfaces/Ports Details1 x LC 40GBase-SR4 Network
Media & Performance
Media Type SupportedOptical Fiber
Fiber Mode SupportedMulti-mode
Ethernet Technology40 Gigabit Ethernet
Network Technology40GBase-SR4
Physical Characteristics
Form FactorHot-swappable
Miscellaneous
CompatibilityMSA Compliant
Country of OriginChina
Warranty
Limited WarrantyLifetime
[/custom-specifications][custom-faq]

FAQ

What type of fiber does this QSFP+ transceiver support?

This transceiver supports multi-mode fiber (MMF) with LC connectors. It is designed for 40GBASE-SR4 networks operating over multi-mode fiber infrastructure, providing connectivity for distances up to 300 meters. The module operates at 850nm wavelength, which is standard for multi-mode fiber applications in data centers and enterprise networks.

What does MSA compliance mean for this transceiver?

MSA compliance indicates that this QSFP+ transceiver meets the Multi-Source Agreement standards for form factor, electrical interface, and optical specifications. This ensures interoperability with networking equipment from multiple vendors that also adhere to MSA standards. The transceiver is programmed and tested to work with compatible MSA uncoded switches and routers, providing reliable performance in multi-vendor network environments.

What is the maximum distance supported by this transceiver?

The QSFP-40G-ESR4-ST supports connections up to 300 meters over multi-mode fiber. This reach makes it suitable for various deployment scenarios within data centers and enterprise networks, including connections between equipment in different racks or across network rooms. The distance specification is based on the 40GBASE-SR4 standard for multi-mode fiber applications.

What type of connector does this transceiver use?

This transceiver uses an LC connector interface for fiber optic connections. The LC connector is a small form-factor connector commonly used in high-density networking applications. It provides secure optical connections with low insertion loss, making it ideal for 40GbE deployments where reliable signal transmission is critical for network performance.

[/custom-faq]
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StarTech. com QSFP-40G-ESR4-ST MSA Compliant QSFP+ Transceiver Module - 40GBASE-SR4 - 40 Gbps Multi-Mode Fiber - LC Connector - 300m
MSRP: $75.99
$76.95
$62.95
Save: $13.04 (16.95%)
Available & Ready to Ship