40G QSFP+ SR4 LR4 ER4 ZR4 Optical Transceiver for High-Speed Networks丨C-LIGHT

40G QSFP+

C-LIGHT independently developed 40G QSFP+ optical module covers transmission distances of 100m, 150m, 300m, 10km, 40km, 80km, and 90km, and supports rates up to 40Gb/s. Its communication protocol complies with IEEE802.3ba-2018; the interface protocol complies with SFF-8436; and the packaging protocol complies with QSFP MSA. The 40G QSFP+ optical module is suitable for data centers, metropolitan area networks, local area networks, 5G communications, fiber channels, as well as high-performance computing and cloud computing environments, showing a wide range of application prospects. Based on more than 15 years of experience in optical communications, C-LIGHT is committed to providing customers with spot supply and customized services. The 40G QSFP+ optical module is compatible with switches from more than 100 brands, and is committed to providing original after-sales service to help customers effectively reduce costs.

3-year warranty Long term maintenance

Technical Support Professional free technical guidance

100% detection Each module is 100% tested

Spot stock Always in stock, short delivery time

Technical Support

Product Details

Form Factor	Part No.	Fiber Type	Data Rate	Wavelength	Distance	Connector	Case Temperature	Note
QSFP+	CLQSFP40GXZR4	SMF	40G	1310nm	90km	LC	Com./Ind.
QSFP+	CLQSFP40GZR4	SMF	40G	1310nm	80km	LC	Com./Ind.
QSFP+	CLQSFP40GER4	SMF	40G	1310nm	40km	LC	Com./Ind.	Data Sheet
QSFP+	CLQSFP40GLR4	SMF	40G	1310nm	10km	LC	Com./Ind.	Data Sheet
QSFP+	CLQSFP40GPSM4	SMF	40G	1310nm	10km	MPO	Com./Ind.
QSFP+	CLQSFP40GLRM4	MMF	40G	1310nm	150m	LC	Com./Ind.
QSFP+	CLQSFP40GXSR4	MMF	40G	850nm	300m	MPO	Com.
QSFP+	CLQSFP40GSR4	MMF	40G	850nm	100m	MPO	Com.	Data Sheet
QSFP+	CLQSFP40GLP	Loopback	40G	-	-	-	Com./Ind.

40G QSFP Optical Transceiver Overview

The 40G QSFP Optical Transceiver is a high-performance 40Gbps pluggable optical module designed for enterprise networks, data center interconnects, and high-speed Ethernet applications. Based on QSFP form factor technology, it provides reliable optical connectivity with low power consumption and excellent signal integrity.

Supporting multiple transmission options including multimode and single mode fiber solutions, the 40G QSFP transceiver enables flexible deployment for short-distance data center links and extended network connections. It is compatible with IEEE standards and widely used in switches, routers, and optical networking equipment.

Key Features of 40G QSFP Optical Transceiver

40Gbps High-Speed Transmission

Supports 4-channel parallel data transmission to deliver stable 40 Gigabit Ethernet connectivity.

QSFP Compact Form Factor

Provides high port density and efficient space utilization for modern network platforms.

Low Power Consumption

Optimized optical design reduces system power usage while maintaining reliable performance.

Wide Compatibility

Designed for interoperability with major networking equipment manufacturers.

Reliable Optical Performance

Provides excellent optical stability, signal quality, and long-term operational reliability.

Flexible Fiber Options

Available with multimode and single mode fiber solutions for different network scenarios.

Applications

Data Center Network Upgrades
40G Ethernet Switching Infrastructure
Enterprise Core Network Connections
Cloud Computing Network Systems
Storage Area Network (SAN)
Telecommunication Optical Networks

Why Choose C-LIGHT 40G QSFP Optical Transceiver

C-LIGHT 40G QSFP Optical Transceivers are engineered to provide stable, efficient, and scalable optical solutions for high-speed network environments. With advanced optical design, strict quality control, and comprehensive testing procedures, C-LIGHT delivers dependable connectivity for enterprise networks, data centers, and telecom applications.

High-quality optical components for consistent transmission performance.
Strict manufacturing processes ensure product reliability and stability.
Multiple reach options support different network deployment requirements.
Comprehensive compatibility testing with mainstream networking platforms.
Professional optical solutions with flexible customization capabilities.

Frequently Asked Questions (FAQ)

Q1: What is a 40G QSFP Optical Transceiver?

A 40G QSFP Optical Transceiver is a pluggable optical module that provides 40Gbps Ethernet connectivity through QSFP technology. It is commonly used in data centers, switches, routers, and high-speed network applications.

Q2: What applications are suitable for 40G QSFP modules?

40G QSFP modules are widely deployed in data center interconnects, enterprise networks, cloud infrastructure, storage networks, and telecom communication systems.

Q3: What fiber types are supported by 40G QSFP transceivers?

Depending on the module type, 40G QSFP transceivers support multimode fiber (MMF) and single mode fiber (SMF) solutions to meet different transmission distance requirements.

Q4: Are C-LIGHT 40G QSFP transceivers compatible with third-party switches?

Yes. C-LIGHT 40G QSFP optical modules are designed for compatibility with major networking equipment platforms and can support various switch and router environments.

Q5: What are the advantages of QSFP packaging?

QSFP packaging provides high port density, efficient thermal management, and lower power consumption compared with traditional optical module form factors.

Q6: How does C-LIGHT ensure 40G QSFP product reliability?

C-LIGHT performs optical performance testing, electrical validation, compatibility testing, and reliability verification to ensure stable operation in real network environments.

Q7: Can 40G QSFP modules be used for network upgrades?

Yes. 40G QSFP transceivers provide a practical upgrade path for organizations migrating from lower-speed Ethernet networks to higher bandwidth infrastructures.

Q8: Does C-LIGHT provide customized optical solutions?

Yes. C-LIGHT provides customized optical transceiver solutions based on transmission distance, wavelength requirements, network applications, and customer specifications.

Conclusion

The 40G QSFP Optical Transceiver provides a reliable and efficient solution for modern high-speed Ethernet networks. With compact QSFP design, stable optical performance, and flexible deployment options, it helps enterprises and data centers build scalable network infrastructures. C-LIGHT delivers high-quality 40G optical connectivity solutions designed for demanding networking environments.