Description
The Cisco QSFP-100G-CWDM4-S is a high-performance 100GBASE CWDM4 QSFP transceiver designed for efficient, high-density 100 Gigabit Ethernet connectivity over single-mode fiber. Supporting link distances of up to 2 kilometers, this module uses four CWDM wavelengths multiplexed over a duplex LC connector, delivering reliable and cost-effective 100G optical links.
Built for data centers, enterprise core networks, and service provider environments, the QSFP-100G-CWDM4-S offers low power consumption, hot-swappable deployment, and seamless interoperability across Cisco 100G-enabled platforms. Its compact QSFP form factor enables scalable network expansion while maintaining operational efficiency and performance.
| Specification | Details |
|---|---|
| Manufacturer | Cisco |
| SKU | QSFP-100G-CWDM4-S= |
| Transceiver Type | QSFP28 Optical Transceiver |
| Ethernet Standard | 100GBASE-CWDM4 |
| Data Rate | 100 Gbps |
| Fiber Type | Single-Mode Fiber (SMF, G.652) |
| Maximum Distance | Up to 2 km |
| Connector Type | Duplex LC |
| Wavelengths | 1271 nm, 1291 nm, 1311 nm, 1331 nm |
| Transmission Technology | CWDM (4 wavelengths) |
| Power Consumption | ≤ 3.5 W |
| Form Factor | QSFP |
| Hot-Swappable | Yes |
| Operating Temperature | 0°C to 70°C |
| Compatibility | Cisco 100G QSFP-enabled switches and routers |
| Application | Data center, enterprise, service provider networks |
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Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
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