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

The BlueOptics QSFP-40G-ESR4-LO-BO is a QSFP fiber optic transceiver module engineered for 40 Mbit/s optical links over 850 nm wavelength. Designed for multi-mode fiber with an MTP/MPO connector, the module supports distances up to 300 m and implements the 40 Gigabit Ethernet electrical interface in a compact 40 g form factor. With a mean time between failures (MTBF) of 1,000,000 hours, the transceiver is intended for installation in network switches, routers, storage systems and other hardware that accept QSFP form-factor transceivers.

Advantages

The module provides standardized QSFP electrical and mechanical compatibility under MSA guidelines and supports simultaneous transmit and receive channels via MPO/MTP optical connection. Built to industry compliance standards such as CE and RoHS, the transceiver integrates diagnostic monitoring functionality to report voltage, laser bias current, optical output and input power and temperature when host hardware supports DDM/DOM. Its small size and light weight simplify installation in dense equipment bays while the specified MTBF indicates suitability for continuous operation.

Suitable for

• 40 Gigabit Ethernet uplinks and high-speed server interconnects over multimode fiber
• Data center switch-to-switch or switch-to-chassis links within a 300 m range
• Storage area networks and Fibre Channel over Ethernet (FCoE) applications
• Environments requiring MPO/MTP multi-fiber connections and QSFP form-factor modules

Key specifications

• Optical wavelength: 850 nm (transmit and receive)
• Maximum data transfer rate: 40 Mbit/s
• Maximum transfer distance over multimode fiber: up to 300 m
• Interface type: 40 Gigabit Ethernet (QSFP electrical interface)
• Fiber connector type: MTP/MPO
• Weight: 0.04 kg
• Mean time between failures (MTBF): 1,000,000 hours

How to use

Install the QSFP transceiver into a compatible QSFP slot on the host device following the host vendor’s hot-plug and electrostatic discharge (ESD) handling instructions. Connect an appropriate multimode fiber patch cord with MTP/MPO termination to the transceiver and to the corresponding fiber panel or transceiver on the remote device. Verify link status and, if supported, read digital diagnostic monitoring (DDM/DOM) values from the host to confirm optical power and device temperature are within expected ranges prior to commissioning.

Recommendations

Use certified multimode fiber patch cords and MPO/MTP trunks that match the transceiver’s 850 nm specification. Confirm host compatibility with QSFP-40G transceivers and enable DDM/DOM support to facilitate remote diagnostics. Observe ESD precautions during handling and avoid bending or stressing fiber connections to preserve link quality.