The Cisco SFP-10G-LR is a long-range transceiver module designed for 10 Gigabit Ethernet applications over single-mode fiber (SMF). It supports transmission distances of up to 10 kilometers, making it ideal for use in data centers, campus networks, and enterprise backbone systems. This SFP+ module is hot-swappable, allowing for easy upgrades and maintenance without interrupting network operations. It supports a wide range of Cisco networking devices, providing high-speed, reliable connectivity for long-distance data transmission.