400G QSFP112 SR4 Optical Transceiver — High-Speed, Low Power, DDM Support

This optical transceiver module delivers 400G connectivity over OM4 multimode fiber with a reach of up to 100 meters. Designed for data center and high-performance computing environments, it features four independent 106.25 Gbps lanes, digital diagnostics monitoring, and compliance with industry standards including IEEE 802.3db, CMIS 4.0, and RoHS.

Key Features

• 4x106.25Gbps PAM4 modulation over 850nm VCSEL
• Reach up to 100m on OM4 MMF
• Hot-pluggable QSFP112 form factor
• Digital Diagnostics Monitoring (DDM)
• Low power consumption: ≤10W
• Single MPO-12 connector

Technology & Standards

This optical module complies with IEEE 802.3db and 802.3ck, CMIS 4.0, and QSFP112 MSA. It uses PAM4 modulation and integrates advanced DDM functionality for real-time performance tracking.

How It Works

The transceiver converts electrical signals into optical signals using four 850nm VCSEL lasers. Each lane operates at 53.125 GBaud, supporting an aggregate data rate of 425 Gbps. The receiver uses PIN photodiodes to convert optical signals back to electrical format.

Applications

• Data center spine-leaf architecture
• High-performance computing clusters
• Cloud infrastructure interconnects
• Enterprise network aggregation

Specifications

Advantages

• Lower power consumption vs. competing optical transceiver modules
• Full compliance with CMIS 4.0 for enhanced manageability
• Robust metal housing for improved EMI performance
• Backward compatibility with 100G-SR4 environments

Service & Support

All transceivers come with a 5-year warranty, lifetime technical support, and same-day shipping. Custom labeling and compatibility testing available upon request.

Frequently Asked Questions

Q: What is the maximum distance supported?
A: Up to 100 meters on OM4 multimode fiber.

Q: Is this module compatible with 100G switches?
A: Yes, it supports backward compatibility when used in breakout mode.

Q: Does it support digital diagnostics?
A: Yes, full DDM support for temperature, voltage, TX/RX power, and bias current.

Q: What is the power consumption?
A: Maximum 10W under full operation, 1.5W in low-power mode.

Q: Is it hot-pluggable?
A: Yes, the QSFP112 form factor supports hot-plug functionality.

Precautions

• Use only with compliant QSFP112 ports and host systems.
• Avoid exposure to static electricity and physical shock.
• Do not exceed absolute maximum ratings for voltage and temperature.
• Ensure clean fiber end-faces to avoid performance degradation.

Company Introduction

With over a decade of industry experience, China Cloud Electro Optics Technology Co., Ltd. operates a large manufacturing facility supported by a strong R&D team. We specialize in high-speed optical transceiver modules, including brands like Mellanox, Aruba, Ruckus, and Extreme. Our product portfolio includes network switches, adapters, wireless controllers, and cables, backed by a 10-million-unit inventory and 24/7 customer support.