400G QSFP-DD SR8 MPO Optical Transceiver 100m Multi-Mode Fiber 400Gbp
400G QSFP-DD SR8 optical transceiver using 850nm PAM4 technology with MPO interface. Supports up to 100m multimode fiber for high-density data center and AI applications.
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Description
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Specification
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Features
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Application
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Custom Service
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FAQ
The 400G QSFP-DD SR8 MPO Optical Transceiver is a high-performance short-reach optical module designed for ultra-high-speed data center interconnects. It delivers an aggregate bandwidth of 400Gbps using 8×50G PAM4 optical lanes over multimode fiber, enabling efficient parallel transmission for next-generation hyperscale and AI-driven infrastructures.
Built on the QSFP-DD form factor, this module provides a compact and scalable solution for high-density switch platforms. With MPO interface and 850nm VCSEL technology, it supports up to 100m transmission over OM4 fiber, making it ideal for intra-data center high-bandwidth applications requiring low latency and high reliability.| Data Rate | 400Gbps (8×50G PAM4) |
|---|---|
| Modulation | PAM4 |
| Wavelength | 850nm |
| Transmission Type | SR8 (Short-Reach) |
| Fiber Type | Multimode Fiber (MMF) |
| Connector | MPO/MTP |
| Lane Configuration | 8 × 50G |
| Transmission Distance | 70m (OM3) / 100m (OM4) |
| Laser Type | VCSEL |
| Power Consumption | ≤ 10–12W (typical) |
| Temperature Range | 0°C to +70°C (Commercial) |
| DDM Support | Yes |
| Compliance | QSFP-DD MSA | IEEE 802.3bs/ck | RoHS |
- Supports 400Gbps aggregate data rate
- 8×50G PAM4 optical lanes (SR8 architecture)
- 850nm VCSEL-based short-reach transmission
- Up to 70m (OM3) / 100m (OM4) transmission distance
- MPO/MTP multi-fiber parallel optical interface
- QSFP-DD high-density hot-pluggable form factor
- Low power consumption optimized for data centers
- High signal integrity and low bit error rate performance
- Designed for AI and cloud-scale networking
- RoHS compliant and environmentally friendly design
- Hyperscale data center interconnects
- AI and machine learning GPU clusters
- High-performance computing (HPC) networks
- Spine-leaf architecture in modern data centers
- High-bandwidth switch-to-switch connections
- Cloud computing and virtualization infrastructures
We offer comprehensive OEM and customization services for global networking deployments. Options include custom labeling, EEPROM programming, compatibility coding for major vendors such as Cisco, Arista, Juniper, and NVIDIA, and customized packaging solutions. Engineering-level customization such as power optimization, thermal tuning, and link validation testing is also available upon request.
Q1: What does SR8 mean in 400G optics?
A: SR8 indicates 8 parallel optical lanes, each transmitting at 50G PAM4 over multimode fiber for short-reach applications.
Q2: What fiber type is required for this module?
A: It uses multimode fiber (MMF), typically OM3 or OM4, with MPO/MTP connectors.
Q3: What is the maximum transmission distance?
A: Up to 70 meters on OM3 fiber and up to 100 meters on OM4 fiber under optimal conditions.
Q4: Why is PAM4 used in this transceiver?
A: PAM4 modulation enables higher data rates per lane, allowing 400G transmission with fewer physical lanes.
Q5: Is this module suitable for AI data centers?
A: Yes, it is widely used in AI and hyperscale environments requiring high-bandwidth, low-latency interconnects.
Q6: What is the difference between SR8 and DR4?
A: SR8 uses multimode fiber with MPO and is designed for short distances, while DR4 uses single-mode fiber and supports longer reach up to 500m.
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