Many US data centers and enterprise networks look for ways to increase bandwidth without replacing existing fiber infrastructure. The QSFP-40/100-SRBD module is Cisco’s short range bidirectional transceiver that supports both 40G and 100G Ethernet over multimode fiber. It is designed to deliver higher speeds while allowing organizations to reuse their current duplex MMF cabling.

How the QSFP-40/100-SRBD Module Works

The QSFP-40/100-SRBD uses bidirectional optics to transmit and receive data over two fibers instead of parallel MPO connections. This design enables high speed performance at either 40G or 100G while simplifying cabling requirements and reducing upgrade complexity.

• Dual Speed Support: Operates at both 40G and 100G on compatible Cisco platforms.
• BiDirectional Technology: Uses duplex multimode fiber instead of parallel fiber.
• Short Range Reach: Supports distances up to 100 meters on OM4 fiber.
• LC Duplex Connector: Works with existing MMF cabling found in many US networks.
• Efficient Power Usage: Designed for stable operation in dense switch environments.

Why US Enterprises Choose QSFP-40/100-SRBD

Organizations upgrading from 40G to 100G often want to avoid costly fiber re cabling. The QSFP-40/100-SRBD makes this possible by delivering higher bandwidth over the same duplex multimode fiber already in place.

At ORM Systems, this module is commonly selected by customers who want to scale their data center bandwidth while keeping infrastructure changes minimal.

Ideal Use Cases for QSFP-40/100-SRBD

• Data center upgrades from 40G to 100G using existing MMF
• Enterprise aggregation and core layer fiber links
• High density environments where cabling simplicity matters
• Spine leaf architectures requiring flexible bandwidth
• Cost efficient short range high speed deployments

The Takeaway

The QSFP-40/100-SRBD module delivers flexible short range 40G and 100G connectivity for US organizations that want higher performance without major cabling changes. Its bidirectional design, strong Cisco compatibility, and efficient operation make it a practical solution for modern network upgrades.

If your network needs to increase bandwidth while preserving existing multimode fiber, this module is an excellent fit.