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

The BlueOptics QSFP-40G-ESR4-CN-BO is a QSFP transceiver module designed for 40 Mbit/s optical data links over multimode fiber. Operating at an 850 nm wavelength with an MTP/MPO connector, it supports 40 Gigabit Ethernet interfaces and provides a maximum transfer distance up to 300 m. The module is compact (40 g) and built to industry MSA specifications for mechanical and electrical interoperability, with digital diagnostic monitoring (DDM/DOM) support and an MTBF of 1,000,000 hours to meet high-availability networking requirements.

Advantages

The transceiver offers MSA-compliant QSFP form factor compatibility for straightforward integration into supported switches, routers and storage devices that accept QSFP modules. It supports simultaneous send and receive optical channels via MPO/MTP multimode connections and includes DDM/DOM for real-time monitoring of supply voltage, laser bias current, optical output and input power, and temperature. Construction uses industry-grade components to provide long operational life and predictable performance in data center environments.

Suitable for

• 40 Gigabit Ethernet uplinks and aggregation links in data centers
• High-speed connections between switches, routers and storage systems
• Short-reach multimode fiber links up to 300 m in enterprise networks
• Environments requiring DDM/DOM monitoring for link diagnostics

Key specifications

• Data rate: 40 Mbit/s
• Wavelength: 850 nm
• Maximum reach over multimode fiber: up to 300 m
• Connector type: MTP/MPO
• Interface type: 40 Gigabit Ethernet (QSFP)
• Weight: 0.04 kg
• Digital Diagnostics Monitoring (DDM/DOM): supported
• Mean time between failures (MTBF): 1,000,000 hours

How to use

Install the BlueOptics QSFP-40G-ESR4-CN-BO into a compatible QSFP slot on your network device following the device manufacturer’s hot-plug procedures. Connect an appropriate MPO/MTP multimode fiber patch cord to the module and route the other end to the matching transceiver or patch panel. Ensure the host device firmware or driver supports third-party QSFP modules and that DDM/DOM functions are enabled in the management interface if diagnostic monitoring is required. Observe ESD precautions and avoid bending the fiber beyond recommended radii during installation.

Recommendations

Use multimode OM3/OM4 fiber and MPO/MTP patch cables rated for 40GBASE-ESR4 to achieve the specified reach. Verify interoperability with the specific switch or router model before large-scale deployment and enable DDM/DOM monitoring for ongoing link health checks. For optimal longevity, operate the module within the equipment manufacturer’s temperature and power specifications and perform periodic optical power and connector inspections.