BlueOptics QSFP-40G-ESR4-IB-BO network transceiver module Fiber optic 40 Mbit/s 850 nm

The BlueOptics QSFP-40G-ESR4-IB-BO is a QSFP fiber optic network transceiver module designed for 40 Mbit/s multimode optical links at a wavelength of 850 nm. It uses an MPO/MTP connector and follows MSA QSFP form-factor standards, providing a compact, lightweight (0.04 kg) module with a reported MTBF of 1,000,000 hours. The transceiver supports bidirectional optical transmission over multimode fiber and is intended for use in systems that accept QSFP 40GBASE-ESR4 modules.

Advantages

The module is manufactured according to MSA standards and is compatible with hardware platforms that support 40GBASE-ESR4 QSFP transceivers. It includes both transmitter and receiver elements operating at 850 nm and integrates digital diagnostics monitoring (DDM/DOM) functionality where supported by host hardware. Lightweight construction and standard MPO/MTP connectivity simplify installation and cabling in dense networking environments. The stated MTBF supports long operating intervals and reduced maintenance requirements.

Suitable for

• 40 Mbit/s multimode fiber links in switches and routers that support QSFP 40GBASE-ESR4
• High-speed interconnects between storage systems and network equipment
• Data center aggregation and spine-leaf topologies using MPO/MTP cabling

Key specifications

• Interface type: QSFP (MSA-compliant)
• Maximum data transfer rate: 40 Mbit/s
• Optical wavelength: 850 nm (transmitter and receiver)
• Connector type: MPO/MTP
• Fiber type: multimode fiber
• Weight: 0.04 kg
• Digital diagnostics: DDM/DOM support (when enabled by host hardware)
• Mean time between failures (MTBF): 1,000,000 hours

How to use

Install the QSFP-40G-ESR4-IB-BO into a compatible QSFP slot on the host device following the vendor's hot-plug procedures. Connect multimode MPO/MTP patch cords to the module and route them to the corresponding patch panels or transceivers. Ensure the host equipment firmware and software support the 40GBASE-ESR4 QSFP profile and, if required, enable digital diagnostics monitoring to read status parameters such as supply voltage, laser bias, output/receive power and temperature. Verify link status and optical power levels after insertion and cabling to confirm proper operation.

Recommendations

Use verified multimode MPO/MTP patch cords and maintain proper fiber cleanliness to achieve optimal link performance. Confirm host device compatibility with 40GBASE-ESR4 QSFP modules and enable DDM/DOM if remote diagnostic monitoring is needed. For best results in data center environments, follow standard fiber management practices and keep cable lengths within multimode specifications for the desired link distance.