Cisco CFP-100G-ER4

The Cisco CFP-100G-ER4 is a hot-pluggable transceiver module designed for high-speed optical communication applications. It is part of the Cisco 100 Gigabit Ethernet (100G) transceiver family and supports a data rate of 100 Gbps. The "ER4" in the name stands for Extended Reach 4, indicating that this transceiver is designed for long-distance transmission. It uses four wavelengths (1310 nm) to achieve a reach of up to 40 kilometers (24.85 miles) over single-mode fiber. The CFP-100G-ER4 transceiver module is commonly used in data centers, telecommunications networks, and service provider networks to enable high-speed and long-distance connectivity.