Fiber optic transceiver module BlueOptics ET7402-SR4-BO QSFP28 MTP/MPO

The BlueOptics ET7402-SR4-BO QSFP28 MTP/MPO fiber optic transceiver module is engineered for 100G high-speed multimode fiber links. It implements the 100GBASE-SR4 optical standard with 850 nm transmit and receive wavelengths and an MTP/MPO connector for parallel multimode connections. Compact and lightweight (0.04 kg) with an aluminum housing, the module supports short-reach data transmission up to approximately 100 meters on suitable multimode fiber and is intended for use in compatible QSFP28 slots in switches, routers, storage systems and other network equipment that support the same form-factor and protocol.

Advantages

The module follows industry MSA specifications for QSFP28 and MPO/MTP interfaces, enabling interoperability with hardware that supports 100GBASE-SR4. Its design supports simultaneous transmit and receive channels over multiple fibers, reduces susceptibility to electromagnetic interference, and includes digital diagnostic monitoring for real-time status of supply voltage, laser bias current, transmit power, receive power and temperature when the host supports DDM/DOM. The lightweight aluminum construction and standardized connector simplify installation and handling in dense networking environments.

Suitable for

• Short-reach 100G data center links over multimode fiber (up to ~100 m)
• High-density switch-to-switch or switch-to-server interconnects
• Storage area networks and high-throughput SAN fabrics
• Environments requiring reduced EMI sensitivity for optical links

Key specifications

• Form factor: QSFP28
• Optical protocol: 100GBASE-SR4
• Wavelength: 850 nm (TX and RX)
• Connector: MTP/MPO (parallel multimode)
• Fiber type: Multimode fiber (MMF)
• Typical reach: up to ~100 meters (depends on fiber type and link budget)
• Weight: 0.04 kg
• Housing color/material: Aluminium
• Monitoring: Digital Diagnostic Monitoring (DDM/DOM) support when enabled by host

How to use

Install the BlueOptics ET7402-SR4-BO into a compatible QSFP28 port following the equipment manufacturer’s hot-plug guidelines. Connect an MPO/MTP multimode fiber patch cord between the module and the corresponding MPO/MTP break-out or patch panel, observing correct polarity and fiber ribbon orientation. Ensure the host device is configured for 100GBASE-SR4 operation and check that DDM/DOM support is available in the system if real-time diagnostics are required. Verify link status and optical power levels after connection to confirm proper operation.

Recommendations

Use OM3 or OM4 multimode fiber to achieve the specified short-reach distances and maintain good link margin. Keep MPO/MTP connectors and adapter interfaces clean to avoid signal loss; use appropriate cleaning tools and follow fiber handling best practices. If interoperability is critical, validate the transceiver in your specific hardware and firmware combination before wide deployment.