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400G OSFP is an optical transceiver package that utilizes 8 high-speed electrical channels to achieve a transmission rate of 400 Gbps, typically implemented via modulation schemes such as 8×50G PAM4 or 4×100G PAM4. It features an integrated heat spreader to handle higher power consumption and supports various specifications including SR8 (short-range multimode) and DR4 (medium-range single-mode). It is suitable for applications such as intra-data-center connections and high-performance computing.
| Form Factor | Part No. | Fiber Type | Data Rate | Wavelength | Distance | Connector | Case Temperature | Note |
| OSFP Close Top | CL400GOSFPLR4-CLT | SMF | 400G | LAN WDM | 10km | LC | Com. | Data-Sheet |
| OSFP RHS | CL400GOSFPLR4-RHS | SMF | 400G | LAN WDM | 10km | LC | Com. | Data-Sheet |
| OSFP Close top | CL400GOSFPFR4-CLT | SMF | 400G | LAN WDM | 2km | LC | Com. | Data-Sheet |
| OSFP Close top | CL400GOSFPFR4-IB-CLT | SMF | 400G | LAN WDM | 2km | LC | Com. | Data-Sheet |
| OSFP RHS | CL400GOSFPFR4-RHS | SMF | 400G | LAN WDM | 2km | LC | Com. | Data-Sheet |
| OSFP Close Top | CL400GOSFPDR4-CLT | SMF | 400G | LAN WDM | 500m | MPO | Com. | Data-Sheet |
| OSFP Close Top | CL400GOSFPDR4-IB-CLT | SMF | 400G | LAN WDM | 500m | MPO | Com. | Data-Sheet |
| OSFP RHS | CL400GOSFPDR4-RHS | SMF | 400G | LAN WDM | 500m | MPO | Com. | Data-Sheet |
| OSFP Close Top | CL400GOSFPSR4-CLT | MMF | 400G | 850nm | 100m | MPO-12 | Com. | Data-Sheet |
| OSFP Flat top | CL400GOSFPSR4-IB-FLT | MMF | 400G IB | 850nm | 50m | MPO-12 | Com. | Data-Sheet |
| OSFP Flat top | CL400GOSFPSR4-FLT | MMF | 400G | 850nm | 100m | MPO-12 | Com. | Data-Sheet |
| OSFP Close Top | CL400GOSFPSR4-IB-CLT | MMF | 400G IB | 850nm | 50m | MPO-12 | Com. | Data-Sheet |
The C-LIGHT 400G OSFP optical transceiver is a high-performance optical module developed for AI data centers, hyperscale cloud infrastructure, high-performance computing (HPC), and next-generation Ethernet networks. Utilizing the OSFP (Octal Small Form-factor Pluggable) package, it delivers reliable 400Gbps optical connectivity while providing excellent thermal performance for high-density switch and server deployments.
Supporting advanced PAM4 modulation technology, the 400G OSFP optical transceiver enables ultra-high bandwidth, low latency, and stable optical transmission for modern data center applications. It is available in multiple transmission options including SR4, DR4, FR4, and LR4 to satisfy short-, medium-, and long-distance network requirements.
Designed to meet the increasing bandwidth demands of AI clusters, GPU computing platforms, cloud services, and enterprise data centers, C-LIGHT 400G OSFP optical modules provide flexible deployment, excellent interoperability, and reliable performance for next-generation optical interconnect solutions.
Supports up to 400Gbps aggregate bandwidth for high-density Ethernet and AI networking applications.
Optimized OSFP package with excellent thermal performance for modern switches and high-performance computing platforms.
Utilizes PAM4 modulation technology to improve transmission efficiency, signal integrity, and network reliability.
Supports SR4, DR4, FR4, LR4 and other optical interfaces for flexible deployment in different network architectures.
Designed for AI clusters, GPU interconnects, hyperscale cloud infrastructure, and high-performance computing environments.
Provides excellent compatibility, low power consumption, stable optical transmission, and long-term operational reliability.
Provides high-bandwidth optical connectivity for AI training, inference clusters, and next-generation GPU computing platforms, enabling scalable and low-latency network architectures.
Supports large-scale cloud data centers with reliable 400Gbps optical interconnects for spine-leaf networking, server aggregation, and high-density switching.
Designed for HPC environments requiring ultra-fast data transmission, low latency, and high network reliability across compute nodes and storage systems.
Compatible with next-generation 400G Ethernet and InfiniBand architectures, supporting modern AI fabrics and high-performance networking environments.
Supports high-speed optical links between switches, routers, and data center infrastructure, improving bandwidth utilization and network scalability.
Suitable for enterprise backbone networks, carrier transmission systems, and high-capacity optical communication infrastructure requiring reliable 400G connectivity.
The rapid growth of artificial intelligence, cloud computing, machine learning, and high-performance computing continues to drive demand for faster and more efficient optical interconnect solutions. The C-LIGHT 400G OSFP optical transceiver is engineered to deliver outstanding bandwidth, thermal performance, and transmission reliability, helping customers build scalable and future-ready network infrastructures.
Featuring the high-density OSFP form factor and advanced PAM4 signaling technology, the module supports multiple optical interfaces including SR4, DR4, FR4, and LR4, allowing flexible deployment across short-, medium-, and long-distance applications. It provides excellent interoperability with mainstream networking equipment and is optimized for high-density switches, AI clusters, and hyperscale cloud platforms.
Backed by C-LIGHT's manufacturing experience and strict quality control, every optical transceiver undergoes comprehensive optical, electrical, compatibility, and reliability testing before shipment. Customers benefit from stable performance, low power consumption, and dependable operation throughout the product lifecycle.
Comprehensive 400G OSFP solutions covering SR4, DR4, FR4, LR4 and customized optical transmission requirements.
Every module is fully tested for optical performance, interoperability, environmental reliability, and long-term stability before delivery.
Compatible with leading Ethernet and InfiniBand platforms, providing seamless deployment in existing and next-generation network infrastructures.
C-LIGHT provides responsive technical support, customized optical solutions, and professional services to help customers accelerate network deployment.
A 400G OSFP optical transceiver is a high-speed optical module designed to deliver 400Gbps data transmission for AI data centers, hyperscale cloud infrastructure, enterprise networks, and high-performance computing systems. The OSFP form factor provides superior thermal performance for high-density deployments.
400G OSFP optical transceivers are widely deployed in AI data centers, GPU clusters, hyperscale cloud platforms, high-performance computing, enterprise backbone networks, Ethernet switching systems, and data center interconnect applications.
C-LIGHT offers multiple transmission options including SR4 for multimode fiber, DR4 for 500m single-mode applications, FR4 for 2km transmission, and LR4 for 10km long-distance connectivity, allowing flexible deployment across different network environments.
The module adopts advanced PAM4 modulation technology together with high-speed DSP processing to provide stable optical transmission, improved bandwidth efficiency, and excellent signal integrity for modern 400G networks.
Yes. The C-LIGHT 400G OSFP optical transceiver is specifically designed for AI training clusters, GPU interconnects, cloud computing infrastructure, and high-density Ethernet switches that require high bandwidth, low latency, and reliable optical performance.
Compared with traditional pluggable modules, the OSFP package provides improved thermal dissipation, supports higher power budgets, enables high-density port configurations, and is well suited for next-generation AI networking equipment.
Yes. C-LIGHT 400G OSFP optical transceivers are developed in accordance with industry standards and are compatible with a wide range of Ethernet and InfiniBand networking platforms, ensuring reliable interoperability.
C-LIGHT combines advanced optical technology, strict manufacturing processes, comprehensive compatibility testing, and reliable quality control to provide high-performance 400G optical transceivers that support current and future AI-driven network infrastructures.
The C-LIGHT 400G OSFP optical transceiver portfolio is designed to support the growing bandwidth requirements of AI computing, hyperscale cloud infrastructure, enterprise networks, and high-performance computing environments. By combining advanced PAM4 technology, multiple transmission distance options, excellent thermal performance, and comprehensive compatibility, these optical modules provide a reliable foundation for next-generation 400G Ethernet deployments.
Whether upgrading existing data center infrastructure or building new AI networking platforms, C-LIGHT offers flexible 400G OSFP optical solutions that deliver stable performance, low latency, high reliability, and excellent scalability for future network expansion.
Looking for the right 400G OSFP optical transceiver for your network? Our experienced technical team can help you select the most suitable optical module for AI data centers, cloud computing, enterprise networking, and high-performance computing applications.
Contact UsC-LIGHT offers a comprehensive portfolio of 400G OSFP optical transceivers designed for AI data centers, cloud computing, hyperscale networks, enterprise infrastructure, and high-performance computing applications. With support for SR4, DR4, FR4, and LR4 optical interfaces, our solutions provide flexible deployment options, excellent interoperability, and dependable optical performance. Contact C-LIGHT today to discover the right 400G optical transceiver solution for your next-generation network.
●100% of products pass initial test, final test and factory inspection.
●3-step quality control management process.
●100% complete implementation of customer order quality requirements.
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Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.
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