Cisco ONS-QSFP28-LR4

The Cisco ONS-QSFP28-LR4 is a transceiver module designed for use in high-speed optical networks. It is part of the Cisco Optical Networking System (ONS) portfolio and uses the QSFP28 form factor. The "LR4" in the name stands for "Long Reach 4," indicating that this transceiver is capable of transmitting and receiving data over long distances. It supports a transmission distance of up to 10 kilometers (6.2 miles) using four wavelengths (1310 nm) and is compatible with single-mode fiber optic cables. The Cisco ONS-QSFP28-LR4 is commonly used in data centers, telecommunications networks, and other high-bandwidth applications that require reliable and high-speed connectivity over long distances.