Description

The Cisco QSFP-100G-SR4-S is a high-speed optical transceiver designed for short-reach links in data centers, rack-to-rack connections, or campus network uplinks. It supports 100 Gigabit Ethernet over multimode fiber (MMF), reaching up to about 100 meters when using OM4 fiber and about 70 meters with OM3. Moreover, the transceiver runs at 850 nm wavelength and uses an MPO/MTP-12 connector for easy cable management. Because it draws around 3.5 W, it stays efficient in densely packed switch modules.
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Connectivity: Interface Provided: 1 x Ethernet 100GBase-SR4 – MPO multi-mode
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Key Features & Benefits (Cisco QSFP-100G-SR4-S)

• Supports 100G speeds via four 25G lanes for aggregate throughput.
• Works over MMF: up to ~100 m on OM4, ~70 m on OM3 fiber.
• Operates with low power (~3.5 W), therefore suits high-density switch platforms.
• Hot-swappable and compliant with QSFP28 MSA standards, thus integrating smoothly into existing infrastructure.
• Includes diagnostics (DOM) to monitor link health, such as optical power and temperature.

Use Cases

• Connect switches or servers inside racks in data centers.
• Build short-distance uplinks in enterprise or campus networks.
• Expand or replace existing 40G links with 100G using compatible multimode fiber.
• Use in blade centers or server clusters where high port density and lower latency matter.

📂 Data Sheet