CQP-SI400G-DR4 400Gbps QSFP-DD Optical Transceiver with 1310nm Wavelength and 500m Transmission for Data Centers
The CQP-SI400G-DR4 is a high-performance 400G QSFP-DD DR4 optical transceiver based on silicon photonics integration technology, designed for medium-reach single-mode fiber (SMF) links in data centers and enterprise networks. It operates on 4 parallel 100G PAM4 lanes with a single 1310nm wavelength, delivering stable 500m transmission when FEC is enabled. Fully compliant with IEEE 802.3bs 400GBASE-DR4 and QSFP-DD MSA standards, it features hot-swappable design and digital optical monitoring (DOM) for easy maintenance.
| Parameter | Specification |
|---|---|
| Product Model | CQP-SI400G-DR4 |
| Form Factor | QSFP-DD (Double Density) MSA Compliant |
| Data Rate | 400Gbps Aggregate (4 × 100Gbps PAM4 Per Lane) |
| Modulation Format | PAM4 (4-Level Pulse Amplitude Modulation) |
| Wavelength | 1310nm (Single Wavelength Parallel Transmission) |
| Fiber Type | Single-Mode Fiber (SMF, 9/125μm) |
| Transmission Distance | 500m (With FEC Enabled) |
| Optical Interface | MPO-12 APC (Female) |
| Digital Monitoring | DOM (Supports Temperature, Voltage, Bias Current, Tx/Rx Power, Module Health) |
| Hot-Swappable | Yes (Online Replacement Without Service Interruption) |
| Power Supply | 3.3V Single Supply |
| Max Power Consumption | ≤10W |
| Operating Temperature | 0°C ~ 70°C (Commercial Grade) |
| Storage Temperature | -40°C ~ 85°C |
| Standards Compliance | IEEE 802.3bs 400GBASE-DR4, QSFP-DD MSA, CMIS 4.0 |
| Laser Class | Class 1 (Eye-Safe) |
| Environmental Compliance | RoHS 2.0 Compliant |
| Breakout Capability | Supports 4×100G-DR Breakout for Legacy Network Compatibility |
- Silicon Photonics Integration: Higher integration density, lower power consumption, and superior reliability compared to traditional optoelectronic solutions
- Longer Reach for SMF: 500m transmission distance supports inter-cabinet, inter-building, and campus-scale data center connections
- Cost-Effective Interconnection: Single wavelength design reduces fiber and cable costs by up to 75% compared to multi-wavelength SMF solutions
- Broad Compatibility: Seamlessly integrates with mainstream network equipment and supports 4×100G-DR breakout for smooth legacy network migration
- Easy Maintenance: Hot-swappable design and real-time DOM monitoring enable proactive troubleshooting and minimal downtime
- Energy Efficient: Optimized power management reduces operational costs for large-scale data center deployments
- Data Center Inter-Cabinet / Inter-Building Connectivity
- Campus Backbone Networks & Enterprise Core Upgrades
- High-Performance Computing (HPC) Cluster Interconnection
- Cloud Service Provider (CSP) Medium-Reach Links
- Metro Access Networks (Short-Haul)
- Legacy 100G/200G Network Migration to 400G
Rigorous testing for optical power, extinction ratio, BER, and temperature stability with 1-year standard warranty.
Package Contents: 1× CQP-SI400G-DR4 Module, 1× Anti-Static Bag, 1× English User Manual, 1× Optical Interface Cleaning Cloth.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.