Transceptor OSFP Twin-Port BlueOptics P49762-B21-BO, MPO/MTP-12 APC, 2×400GBASE-SR4, MMF 850 nm, 50 m, 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

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

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

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.