Data centers continue to push toward higher bandwidth and more flexible switching architectures, making short range 100G connectivity a key requirement. The QSFP-100G-SR4-S module is Cisco’s standards based 100G multimode transceiver designed for fast, reliable, and cost effective optical links across modern data center environments. Its strong performance, ease of deployment, and low latency make it one of the most widely adopted 100G SR optics on the market.

How the QSFP-100G-SR4-S Module Works

The QSFP-100G-SR4-S module uses four parallel lanes of 25G transmitted over an MPO interface to create a full 100G Ethernet link. This parallel design enables predictable performance and high throughput for short range fiber paths commonly used inside racks, rows, or adjacent data halls.

• Short Range 100G Connectivity: Supports 70 meters on OM3 and 100 meters on OM4.
• Parallel Optics Design: Four 25G lanes for consistent, high speed transmission.
• MPO Connector Support: Works with standard 12 fiber MPO infrastructure.
• Hot Swappable: Allows installation without taking interfaces offline.
• Power Efficient: Designed for dense, high performance data center deployments.

Why Data Centers Choose QSFP-100G-SR4-S

Modern workloads such as AI processing, large scale virtualization, and distributed storage demand fast east west traffic. The QSFP-100G-SR4-S delivers this with minimal latency, making it ideal for leaf spine networks and server aggregation layers that require consistent 100G performance.

At ORM Systems, this module is frequently deployed during upgrades from 40G to 100G or in new data center builds that follow structured MPO cabling designs.

Where the QSFP-100G-SR4-S Module Excels

• Leaf spine architectures requiring high speed SR connectivity
• Top of rack and middle of row switch uplinks
• High density compute clusters and storage fabrics
• Upgrades from 40G SR4 to 100G SR4
• Data centers standardizing on MPO cabling

The Takeaway

The QSFP-100G-SR4-S module is a practical and reliable option for short range 100G connectivity. Its parallel optics, efficient power design, and strong compatibility with Cisco platforms make it a foundational component for high performance data centers.

For networks that need fast and dependable 100G links inside the data center, this optic delivers stability, scalability, and long term value.