As data traffic continues to rise inside US data centers and enterprise networks, higher bandwidth links are needed between switches, aggregation layers, and core infrastructure. The QSFP-40G-SR4-S module is Cisco’s S class 40 Gigabit multimode transceiver built for reliable short range performance. It delivers consistent 40G connectivity in environments where distance is limited but speed is critical.

How the QSFP-40G-SR4-S Module Operates

The QSFP-40G-SR4-S uses an 850 nm laser and a four lane parallel optic design to transmit 40 Gigabit Ethernet over multimode fiber. This architecture allows high throughput while maintaining efficient power usage, making it well suited for dense switching environments.

• Short Range 40G Reach: Supports distances up to 150 meters on OM4 fiber.
• S Class Design: Focuses on essential performance for cost efficient deployments.
• Parallel Optic Architecture: Uses four lanes for stable high speed transmission.
• MPO Connector Interface: Designed for parallel multimode fiber cabling.
• Efficient Power Profile: Helps manage heat in high density switch racks.

Why US Organizations Choose QSFP-40G-SR4-S

Short range 40G connectivity is commonly used in spine leaf architectures, aggregation layers, and switch interconnects inside data centers. The QSFP-40G-SR4-S provides dependable throughput without adding complexity or unnecessary cost, making it a practical choice for scalable network designs.

At ORM Systems, this module is often selected by customers consolidating multiple 10G links into fewer high capacity 40G connections.

Ideal Use Cases for QSFP-40G-SR4-S

• Data center spine and leaf switch connections
• High speed aggregation layer fiber links
• Enterprise networks using multimode fiber
• Short distance 40G backbone deployments
• Bandwidth consolidation from 10G to 40G

The Takeaway

The QSFP-40G-SR4-S module delivers reliable short range 40G connectivity for US organizations that need high bandwidth over multimode fiber. Its efficient parallel optic design, strong Cisco compatibility, and practical reach make it a solid solution for modern enterprise and data center networks.

If your infrastructure requires fast and stable 40G fiber links across short distances, this module is a dependable and well balanced option.