QSFP Transceiver Module BlueOptics QSFP-40G-ESR4-AL-BO 40 Mbit/s 850 nm

The BlueOptics QSFP-40G-ESR4-AL-BO is a QSFP fiber optic transceiver module intended for 40 Gigabit Ethernet applications. It operates at an 850 nm wavelength and supports a maximum data transfer rate of 40 Mbit/s over multimode fiber using an MTP/MPO connector. The module is compact and lightweight (approx. 40 g) and is built to meet MSA QSFP form-factor standards. With an MTBF of around 1,000,000 hours and compliance with common industrial standards, it is designed for continuous operation in networking environments that accept QSFP-40G-ESR4 form-factor modules.

Advantages

This BlueOptics QSFP transceiver provides compatibility with QSFP interfaces and supports bidirectional optical transmission via MPO/MTP connectors on multimode fiber. The module offers a defined maximum transfer distance of up to 300 m at 850 nm and is specified for 40 Mbit/s operation. Built to MSA mechanical and electrical standards and assembled from quality components, it includes digital diagnostics functionality for remote monitoring when the host hardware supports DDM/DOM. The compact weight and standardized form factor simplify installation and replacement in compatible network equipment.

Suitable for

• 40 Gigabit Ethernet links over multimode fiber in data center aggregation or server racks
• Short-reach connections between switches, routers and storage systems (up to 300 m)
• Environments where MTP/MPO backbone cabling is deployed

Key specifications

• Optical wavelength: 850 nm
• Maximum data transfer rate: 40 Mbit/s
• Maximum transmission distance: up to 300 m (multimode fiber)
• Interface type: QSFP (40 Gigabit Ethernet)
• Fiber connector: MTP/MPO
• Typical weight: 0.04 kg
• Mean time between failures (MTBF): approx. 1,000,000 hours

How to use

Install the QSFP-40G-ESR4-AL-BO into a compatible QSFP port on a switch, router or other networking device that supports QSFP-40G-ESR4-style modules. Use an appropriate MTP/MPO multimode fiber patch cord or structured cabling to connect the transceiver to the remote transceiver or patch panel. Ensure the host device firmware and hardware support the module and enable digital diagnostics (DDM/DOM) if remote monitoring of parameters such as temperature, optical power and supply voltage is required. Handle the transceiver using proper ESD precautions and keep protective caps on the connector when not in use.

Recommendations

For optimal performance, match the multimode fiber type and patch-cord polarity recommended for 40GBASE-ESR4 links, verify link budgets for the intended distances (up to 300 m), and confirm that the host hardware supports DDM/DOM features before deployment. Store and operate the module within the manufacturer’s specified environmental ranges and follow ESD-safe handling procedures.