High-Speed 200G QSFP112 SR4 VR2 Transceiver for Data Centers Large Quantity of

200G QSFP112 SR4 VR2 Optical Transceiver Module 

Experience high-density, low-power 200G connectivity for next-generation data centers. This optical transceiver module delivers 212.5 Gbps over OM4 MMF up to 50m using PAM4 modulation and VCSEL technology, ensuring reliable performance with advanced digital diagnostics.

• High Speed: 212.5 Gbps aggregate data rate (2x 106.25 Gbps lanes).
• Reach: Up to 50m on OM4 multimode fiber.
• Low Power: Maximum 6W power consumption.
• Hot-Pluggable: QSFP112 form factor with CMIS 4.0 management.
• Robust Design: Metal housing for EMI immunity, 0°C to +70°C operating temperature.

200G QSFP112 SR4 VR2 Key Characteristics

• Hot-pluggable QSFP112 Type 1 form factor.
• 850nm VCSEL transmitter and PIN receiver.
• Single MPO-12 receptacle connector.
• 200GAUI-2-S C2M electrical interface.
• Digital Diagnostics Monitoring (DDM) support.
• Compliant with RoHS 6/6.

200G QSFP112 SR4 VR2 Core Technology and Standards

This optical module complies with IEEE 802.3db and IEEE 802.3ck standards for 200GBASE-VR2 applications. It uses PAM4 modulation at 53.125 GBd per lane and supports CMIS 4.0 for advanced management. The design ensures compatibility with QSFP112 MSA specifications.

200G QSFP112 SR4 VR2 Operating Principle

The transceiver converts electrical signals into optical signals using 850nm VCSEL lasers. Each of the two independent lanes transmits PAM4-modulated light over multimode fiber. The receiver side uses a PIN photodiode to convert incoming optical signals back into electrical data, enabling bidirectional 200G communication.

200G QSFP112 SR4 VR2 Typical Applications

Ideal for short-reach interconnects in data centers, high-performance computing (HPC), and enterprise networking environments. Commonly deployed in:

• Top-of-rack (ToR) switch connections.
• Data center spine-leaf architecture.
• Server aggregation and network storage.
• AI cluster and cloud infrastructure.

Specifications and Selection Guide

Competitive Advantages

Compared to previous generations like QSFP28, this optical transceiver module offers higher density and lower power per bit. It provides a cost-effective migration path to 200G without requiring infrastructure changes. The 800g osfp alternatives typically target longer reaches but at higher power and cost, making this VR2 module optimal for budget-conscious, high-density short-reach deployments:cite[1].

Service and Support

We provide a 3-year warranty on all optical module products. Standard lead time is 2-4 weeks, with expedited options available. Our technical team offers 24/7 pre-sales consultation and post-sales support, including system integration assistance and firmware updates.

Frequently Asked Questions

Q: What is the maximum distance supported by this transceiver?
A: It supports up to 50 meters on OM4 multimode fiber.

Q: Is this module compatible with QSFP56 ports?
A: Yes, the QSFP112 form factor is backward compatible with QSFP56 host ports, ensuring smooth network upgrades:cite[1]:cite[6].

Q: What is the typical power consumption?
A: Maximum power consumption is 6W under full operation, with a low-power mode under 1.5W.

Q: Does it support digital diagnostics monitoring (DDM)?
A: Yes, it provides real-time monitoring of temperature, voltage, TX bias current, TX output power, and RX input power.

Q: What type of fiber cable is required?
A: It requires an MPO-12 to MPO-12 ribbon cable for multimode fiber connectivity.

Important Precautions

• Ensure host system compatibility with QSFP112 form factor and CMIS 4.0 management.
• Operate only within the specified case temperature range (0°C to +70°C).
• Use proper ESD precautions during handling and installation.
• Avoid exceeding the maximum optical input power of 5 dBm per lane to prevent receiver damage.
• Ensure clean MPO connector interfaces to maintain signal integrity and minimize loss.

Company Introduction

China Cloud Electro Optics Technology Co., Ltd. brings over a decade of expertise in the networking hardware industry. We operate a large-scale manufacturing facility supported by a strong technical R&D team. Our product portfolio includes original brand-new switches, network adapters, wireless access points, controllers, and cables from leading brands. We maintain extensive inventory with over 10 million units available, enabling reliable volume supply and competitive pricing. Our commitment extends beyond delivery, with 24/7 customer consultation and technical support provided by our professional global team.