QSFP-100G-LR4-S Genuine Cisco QSFP-100G-LR4-S 100GBASE-LR4 QSFP for SMF

Cisco QSFP-100G-LR4-S – 100GBASE‑LR4 QSFP28 10 km Optical Transceiver Module

The Cisco QSFP-100G-LR4-S is a 100GBASE‑LR4 QSFP28 optical transceiver designed for long‑reach 100‑Gigabit Ethernet links up to 10 km over single‑mode fiber (SMF). Using four LAN‑WDM wavelengths multiplexed onto a single fiber pair, it delivers high‑performance, low‑power 100G connectivity for data centers, enterprise networks, and service provider backbones. Fully compliant with IEEE 802.3 100GBASE‑LR4 standards, it ensures seamless interoperability across Cisco switching and routing platforms.

🔧 Key Specifications

• Form Factor: QSFP28
• Data Rate: 100 Gbps
• Reach: Up to 10 km over single‑mode fiber (SMF)
• Wavelengths: 4‑lane LAN‑WDM (1295, 1300, 1305, 1310 nm)
• Connector Type: Duplex LC
• Fiber Type: Single‑mode (OS2)
• Transmit Technology: 4x 25G optical lanes multiplexed to 100G
• Power Consumption: Low‑power QSFP28 design
• Operating Temperature: 0°C to 70°C (standard)
• Standards Compliance: IEEE 802.3 100GBASE‑LR4, MSA‑compliant
• Digital Diagnostics: Supported (DOM)

🧩 Ideal Use Cases

• Data center spine‑leaf fabrics requiring long‑reach 100G interconnects
• Enterprise core networks upgrading to high‑bandwidth 100G backbones
• Service provider metro and aggregation needing 10 km optical reach
• High‑density switching platforms using QSFP28 100G optics

⚙️ Platform & Compatibility

• Compatible with Cisco Nexus, Catalyst, and routing platforms supporting QSFP28
• Interoperable with IEEE‑compliant 100GBASE‑LR4 optics
• Supports DOM for real‑time optical monitoring
• Hot‑swappable for simplified maintenance and upgrades