Cisco

Cisco QSFP-40G-LR4L-S | 40G QSFP+ | 40GBASE-LR4 Lite | 1310 nm | 2 km | LC duplex

SKU:QSFP-40G-LR4L-S

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Description

Compact 40GbE LR4 Lite QSFP+ transceiver designed for short long‑reach links up to 2 km over single‑mode fiber with LC duplex connectors. Ideal for campus distribution and data center interconnects that do not require full 10 km budgets while maintaining LR4 wavelength interoperability.

Features

- Cost‑efficient 2 km reach over SMF
- LR4 wavelength compatibility for flexible pairing
- LC duplex simplifies upgrades
- Digital diagnostics for visibility
- Hot‑swappable QSFP+ for rapid serviceability

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

Technical Specifications

- Data rate: 40 Gbps
- Form factor: QSFP+ (hot-swappable)
- Base standard: 40GBASE-LR4 Lite (LR4L)
- Wavelength: 1310 nm (LAN-WDM, 4 lanes)
- Optical reach: up to 2 km over SMF
- Connector: LC duplex
- Fiber type: Single-mode (SMF)
- Digital diagnostics (DDM/DOM): Supported
- Interoperability: Links with full LR4 optics within LR4 Lite power budget
- Applications: Campus distribution, short metro DCI
- Compliance: MSA QSFP+

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