Cisco QSFP-100G-LR4-S

The Cisco QSFP-100G-LR4-S is a transceiver module designed for high-speed data transmission over optical fiber networks. It is part of the Cisco family of 100 Gigabit Ethernet (100G) transceivers and is compliant with the QSFP28 Multi-Source Agreement (MSA). The "QSFP" stands for Quad Small Form-factor Pluggable, indicating that it is a compact and hot-pluggable module. The "100G" denotes its capability to transmit data at a rate of 100 Gigabits per second. The "LR4" in the name refers to the type of optical interface used, which is Long Reach 4-wavelength. It means that the module uses four wavelengths of light to transmit and receive data over a single-mode fiber optic cable, allowing for long-distance transmission of up to 10 kilometers. The "S" at the end indicates that it is a Cisco-branded module. Cisco offers a range of transceiver modules to support various network requirements, and the QSFP-100G-LR4-S is specifically designed for 100G long-range applications.