The QSFP-40G-LR4-AL is a 40 Gigabit Ethernet (40GbE) QSFP+ LR4 optical transceiver module. It’s designed for long-reach connectivity over single-mode fiber (SMF). This module uses four wavelengths (LR4) to transmit 40GbE signals over distances up to 10 kilometers. It’s commonly used in data centers and service provider networks for high-bandwidth connections. Essentially, the QSFP-40G-LR4-AL provides a robust and reliable 40GbE optical link for long-distance applications.
