BlueOptics OSFP Twin-Port Transceiver P49762-B21-BO, MPO/MTP-12 APC, 2×400GBASE-SR4, MMF 850nm, 50m, DDM, 0–70°C

The BlueOptics OSFP Twin-Port Transceiver P49762-B21-BO is a compact, high-density optical module designed to provide two independent 400GBASE-SR4 channels over multimode fiber. It uses MPO/MTP-12 APC connectors and operates at 850 nm, supporting link distances up to 50 meters on appropriate OM3/OM4 multimode fiber. The module supports digital diagnostic monitoring (DDM) and is specified for operation in standard data center ambient temperatures from 0°C to +70°C, making it suitable for aggregation switches and spine-leaf fabrics that require dual 400 Gbps ports in an OSFP form factor.

Advantages

The transceiver delivers two 400 Gbps channels in a single OSFP package, enabling high port density and reduced rack space for top-of-rack or spine deployments. MPO/MTP-12 APC connectors facilitate orderly fiber management for multimode ribbon cables, and the 850 nm wavelength is standard for short-reach multimode links. Built-in DDM provides real-time monitoring of optical parameters to aid diagnostics and maintenance. The specified operating temperature range supports typical enterprise and data center environments.

Suitable for

• Short-reach 400G aggregation links inside data centers (up to 50 m on suitable MMF)
• High-density switch ports where two 400G channels in one OSFP module are needed
• Spine-leaf and top-of-rack fabrics using multimode fiber and MPO/MTP cabling
• Environments requiring real-time optical monitoring via DDM

When it may not be suitable

This module is intended for multimode short-reach links and is not suitable for single-mode long-haul connections or runs that exceed the specified 50 m reach on multimode fiber. It also requires switch hardware that accepts OSFP form-factor modules and supports twin-port 400GBASE-SR4 optics; it will not be compatible with devices that only accept QSFP-DD, CFP, or proprietary module types.

Key specifications

• Form factor: OSFP twin-port (dual 400G channels)
• Ethernet standard: 2 × 400GBASE-SR4
• Wavelength: 850 nm
• Fiber type: Multimode fiber (MMF), recommended OM3/OM4
• Maximum reach: up to 50 meters on appropriate MMF
• Connectors: MPO/MTP-12 APC
• Monitoring: Digital Diagnostic Monitoring (DDM)
• Operating temperature: 0°C to +70°C

How to use

Install the BlueOptics OSFP transceiver into a compatible OSFP slot following the host equipment vendor’s insertion and removal procedures. Use MPO/MTP-12 APC multimode ribbon cables and ensure correct polarity and cable type (OM3/OM4) to achieve the specified reach. Verify that the switch or router firmware supports twin-port 400GBASE-SR4 operation and enable optical monitoring if required. Monitor DDM outputs for optical power, temperature, and other parameters to assist with link qualification and troubleshooting.

What to consider before purchase

• Ensure your switch or router accepts OSFP form-factor modules and supports dual 400GBASE-SR4 ports
• Confirm the installed multimode fiber type (OM3/OM4) and link distance to match the 50 m maximum reach
• Check connector compatibility with your MPO/MTP-12 APC cabling and patch panels
• Verify that your management systems can read DDM parameters if optical monitoring is required

Usage recommendations

Use certified OM3 or OM4 multimode fiber and factory-tested MPO/MTP-12 APC assemblies for reliable short-reach 400G links. Keep fiber runs within the 50 m limit, maintain proper connector cleanliness, and monitor DDM values during initial bring-up and periodic maintenance to ensure stable performance.