BlueOptics QSFP56 200GBASE-SR4 Transceiver S6B56A-BO, MPO/MTP, Multimode 850nm, 100m, DDM, 0–70°C

The BlueOptics QSFP56 200GBASE-SR4 Transceiver S6B56A-BO is a short-reach optical module designed for 200 Gbit/s multimode links. It uses an MPO/MTP interface and transmits at 850 nm, supporting multimode fiber connections up to 100 meters. The module supports Digital Diagnostics Monitoring (DDM) and is specified to operate in the 0–70°C range, making it suitable for standard data center and networking equipment that require compact, hot-pluggable 200G optics.

Advantages

This transceiver provides a high-density QSFP56 form factor for 200GBASE-SR4 applications and supports MPO/MTP connectors for parallel multimode fiber assemblies. Built-in DDM enables real-time monitoring of parameters such as optical power and temperature. The 850 nm multimode design with a 100 m reach covers typical short-reach interconnects within racks and between adjacent racks. Industrial operating temperature specification ensures stable performance in controlled equipment environments.

Suitable for

• Data center server-to-switch and switch-to-switch short-reach connections
• Aggregation and spine-leaf architectures requiring 200G links
• High-density network equipment with QSFP56 ports
• Multimode fiber trunking up to 100 m using MPO/MTP cabling

When it may not be suitable

This module is not designed for single-mode fiber or long-distance links beyond its 100 m multimode reach. It is not intended for environments that require extended industrial temperature ranges below 0°C or above 70°C. Compatibility with specific switch or transceiver vendor locking policies should be verified before purchase if using branded network equipment.

Key specifications

• Form factor: QSFP56 (200G)
• Optical standard: 200GBASE-SR4
• Wavelength: 850 nm
• Fiber type: Multimode fiber (MMF)
• Maximum reach: 100 m on multimode fiber
• Connector: MPO/MTP
• Monitoring: Digital Diagnostics Monitoring (DDM)
• Operating temperature: 0–70°C

How to use

Insert the QSFP56 transceiver into a compatible QSFP56 port on your switch or host adapter while the device is powered off or hot-pluggable according to the equipment manual. Connect an MPO/MTP multimode trunk or breakout cable to the module, ensuring correct polarity and fiber type. Verify link status and diagnostic parameters via your equipment management interface or DDM readings to confirm proper operation. Follow vendor guidelines for electrostatic discharge protection and handling to avoid damage to the optical interface.

What to consider before purchase

• Verify physical QSFP56 port compatibility and vendor acceptance on your switch or host
• Confirm use of multimode fiber (MMF) and MPO/MTP cabling with the required polarity
• Ensure 100 m reach on your chosen multimode fiber type and link budget
• Check environmental requirements against the 0–70°C operating range

Usage recommendations

Use this transceiver in rack and row-level data center links where 200G multimode performance and DDM monitoring are required. For best results, pair with MPO/MTP certified multimode cabling and follow vendor compatibility guidance to ensure stable, high-speed interconnects.