BlueOptics QSFP28 Transceiver R0R40A-BO 100GBASE-SWDM4 LC-Duplex Multimode 850nm 100m DDM/DOM

The BlueOptics QSFP28 Transceiver R0R40A-BO is a compact 100G optical module designed for short-reach multimode fiber links. It implements the 100GBASE-SWDM4 specification, operates at 850 nm using an LC-duplex connector and supports link distances up to 100 m on suitable multimode fiber. The module includes digital diagnostic monitoring (DDM/DOM) and is specified to operate in ambient temperatures from 0°C to +70°C, making it suitable for data center and enterprise 100 Gigabit Ethernet uplinks and aggregation links.

Advantages

This QSFP28 transceiver provides high-density 100G connectivity in a compact form factor compatible with HPE FlexFabric environments. Its SWDM4 design enables four-wavelength operation over multimode fiber, allowing 100G throughput on existing multimode cabling up to 100 meters. The LC-duplex interface and industry-standard QSFP28 footprint simplify installation and replacement. Built-in DDM/DOM lets administrators monitor optical parameters such as transmit/receive power and temperature for proactive maintenance.

Suitable for

When it may not be suitable

This transceiver is intended for short-reach multimode connections and is not suitable for single-mode long-haul or campus links that require kilometers of reach. It also will not be appropriate where the network requires a different wavelength, connector type (for example, MPO/MTP), or optical specification such as 100GBASE-LR for single-mode fiber.

Key specifications

How to use

Install the QSFP28 transceiver into a compatible QSFP28 port on the switch or network device, ensuring the host platform supports 100GBASE-SWDM4 modules. Connect LC-duplex multimode fiber patch cords between transceiver ports and the remote device. After insertion, verify link status and monitor diagnostics through the host system to confirm optical power, temperature and other DDM parameters are within expected ranges. Use proper ESD precautions and follow vendor guidance for hot-plugging and firmware compatibility.

What to consider before purchase

Recommendations

For reliable 100G links, use high-quality OM3/OM4 multimode fiber and LC-duplex patch cords rated for short-reach 100G operation, verify host compatibility with HPE FlexFabric or other QSFP28 platforms, and monitor DDM/DOM parameters after deployment to detect signal or environmental issues early.