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The 400G QSFP-DD SR8 100m transceiver is a high-speed optical module in QSFP-DD form factor, delivering 400Gbps bandwidth through 8-channel 850nm VCSEL arrays and PAM4 modulation. Operating on OM4 multimode fiber (supporting 100-meter reach), it features an MPO-16/APC connector to minimize reflections. With sub-10W power consumption and compliance to IEEE 802.3cm/QSFP-DD MSA standards, it enables seamless integration with 200G/100G infrastructure. Ideal for high-density data center interconnects, this module efficiently supports leaf-spine switching, HPC clusters, and cloud networks requiring cost-effective, low-latency 100m connectivity.
| Product Features |
●Case temperature range of 0℃ to +70℃ ●Maximum link length of 100m on OM4 fiber with FEC ●+3.3V single power supply ●Power dissipation < 9W ●Support DDM function ●Operating case temp: Commercial: 0°C to +70 °C ●MPO-16 APC connector ●RoHS compliant |
| Data Sheet |
| 400G-QSFP-DD-SR8-100m.pdf |
400G QSFP-DD SR8 is an optical transceiver module designed for ultra-short-reach, high-density interconnects within data centers. It utilizes the QSFP-DD form factor and employs 8-lane parallel fiber (SR8) technology, supporting transmission of up to 100 meters over OM4 multimode fiber. It is primarily used for 400G high-speed connections between Top-of-Rack (ToR) switches and high-performance servers or between adjacent racks. Deployment requires matching MPO multimode fiber patch cables and attention to thermal management.
The core application domain of the 400G QSFP-DD SR8 optical transceiver module is ultra-short-reach, ultra-high-bandwidth, and high-density interconnections within data centers. Its 100-meter transmission distance is specifically designed to meet the connectivity requirements within a single rack and between adjacent racks.
400G QSFP-DD SR8 100m Transceiver FAQ
Q1: What is a 400G QSFP-DD SR8 100m transceiver?
A 400G QSFP-DD SR8 100m transceiver is a high-speed multimode optical module designed for 400GbE transmission over OM3/OM4 multimode fiber. It uses 850nm VCSEL technology to deliver low-latency, short-reach connectivity within data centers.
Key features include:
400Gbps data rate
850nm VCSEL technology
Up to 100m over OM4 MMF
MPO-16 APC connector
QSFP-DD form factor
It is ideal for AI data centers, cloud computing, HPC, and Spine-Leaf networks.
Q2: How does a 400G QSFP-DD SR8 transceiver work?
The module converts 8×50G PAM4 electrical lanes into 8 optical channels over multimode fiber. This enables high-bandwidth, low-latency communication between switches and servers for short-distance data center interconnects.
Q3: What are the key features of the C-LIGHT 400G QSFP-DD SR8 100m transceiver?
The C-LIGHT module is designed for high-density short-reach networking.
Key features include:
400Gbps transmission
Up to 100m over OM4 MMF
IEEE 802.3cm compliant
QSFP-DD MSA compliant
MPO-16 APC interface
Power consumption<9w<>
Digital Diagnostic Monitoring (DDM)
These features provide reliable and efficient optical connectivity for modern data centers.
Q4: What are the advantages of a 400G QSFP-DD SR8 transceiver?
Compared with lower-speed optical modules, it offers:
Higher bandwidth density
Ultra-low latency
Cost-effective multimode deployment
Easy migration to 400G
High port density
It is an ideal solution for short-range high-speed interconnects.
Q5: Where are 400G QSFP-DD SR8 transceivers commonly used?
These modules are widely deployed in high-performance data center environments.
Typical applications include:
AI data centers
Cloud computing
High-performance computing (HPC)
Spine-Leaf architectures
Top-of-Rack (ToR) switching
GPU server interconnects
These applications require low-latency, high-bandwidth connectivity over distances up to 100m.
Q6: Why choose a 400G QSFP-DD SR8 instead of a 400G DR4 module?
A 400G SR8 module is optimized for multimode fiber and short-distance links, while DR4 is designed for single-mode fiber and reaches up to 500m.
Its advantages include:
Lower deployment cost
OM3/OM4 fiber support
Ultra-low latency
Simple installation
Excellent compatibility
It is ideal for in-rack and adjacent-rack data center connections.
Q7: How do you choose the right 400G QSFP-DD SR8 transceiver?
When selecting a 400G SR8 module, consider:
Transmission distance
Fiber type (OM3/OM4)
Connector type
Switch compatibility
Power consumption
IEEE/MSA compliance
Choosing the right module ensures reliable performance and future network scalability.
Q8: Why choose the C-LIGHT 400G QSFP-DD SR8 100m transceiver?
The C-LIGHT 400G QSFP-DD SR8 combines high bandwidth, low power consumption, and reliable 100m multimode transmission in a compact QSFP-DD package.
It provides:
400Gbps bandwidth
Up to 100m over OM4
850nm VCSEL technology
Power consumption<9w<>
Broad platform compatibility
It is an ideal solution for AI data centers, HPC clusters, cloud computing, and high-density Ethernet networks.
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