40GB QSFP Transceiver BlueOptics 40GB-ESR4-QSFP-BO Fiber Optic MTP/MPO

The BlueOptics 40GB-ESR4-QSFP-BO is a 40 Gigabit Ethernet fiber optic transceiver with a QSFP interface and MTP/MPO connector designed for multimode fiber links. Supporting data rates up to 40 Gbps and transmission distances up to 300 m, this lightweight aluminium-coloured module (approx. 40 g) implements the 40GBASE-ESR4 specification with 850 nm transmitter and receiver wavelengths. It is designed to interoperate with major networking platforms that accept MSA-compliant QSFP modules and to provide optical connectivity for high-density data center environments.

Advantages

The transceiver conforms to MSA standards, offering broad compatibility with hardware that supports 40GBASE-ESR4 QSFP modules. Built with quality optical components, it delivers stable 40 Gbps transmission over multimode fiber while remaining compact and easy to install. Integrated digital diagnostic monitoring (DDM/DOM) enables real-time reporting of supply voltage, laser bias current, transmit and receive optical power, and temperature for simplified maintenance and remote troubleshooting.

Suitable for

• Data center uplinks and spine-leaf architectures
• High-speed switch-to-switch or switch-to-router connections
• Storage area networks and high-performance computing clusters
• Short-reach multimode optical links up to 300 m

Key specifications

• Form factor: QSFP
• Data rate: 40 Gbps
• Optical wavelength: 850 nm (TX/RX)
• Connector type: MTP/MPO
• Maximum transfer distance (multimode fiber): 300 m
• Interface: 40 Gigabit Ethernet
• Color / material: Aluminium-coloured housing
• Weight: approximately 0.04 kg
• Digital diagnostics: DDM/DOM (SFF-8472 compliant)

How to use

Insert the QSFP transceiver into a compatible QSFP port on a switch, router or other networking device according to the host hardware instructions. Connect an appropriate MTP/MPO multimode fiber patch cord to the module and ensure correct polarity and end-face condition for optimal performance. Verify that the host device firmware and configuration allow third-party MSA-compliant transceivers and, if available, enable DDM/DOM monitoring to view module status and diagnostic parameters.

Recommendations

Use OM3/OM4 multimode fiber and high-quality MTP/MPO patch cords and patch panels to achieve the specified 300 m range. Maintain clean fiber end faces, avoid sharp bends and follow the host equipment guidelines for hot-plug handling. Confirm DDM/DOM support on the connected hardware before relying on digital diagnostic values for troubleshooting.