Cisco QSFP-100G-ER4L-S

The Cisco QSFP-100G-ER4L-S is a transceiver module designed for high-speed data transmission over optical fiber networks. It is part of Cisco's portfolio of 100 Gigabit Ethernet (100G) transceivers. The "QSFP" in the name stands for Quad Small Form-factor Pluggable, which refers to the form factor and interface type of the module. It has four channels, each capable of transmitting and receiving data at a rate of 25 Gbps, resulting in a total data transfer rate of 100 Gbps. The "100G" in the name indicates that it is designed for 100 Gigabit Ethernet networks, which are used for high-bandwidth applications and data centers. The "ER4L" in the name stands for Extended Reach 4-Lane, indicating that it is designed for long-distance transmission. It can transmit data over single-mode fiber optic cables up to a distance of 40 kilometers. Overall, the Cisco QSFP-100G-ER4L-S is a high-performance transceiver module used for long-distance, high-speed data transmission in network environments.