Fibre Channel (FC) is a high-speed data transfer protocol providing in-order, lossless delivery of raw block data. While Proxmox VE (Virtual Environment) is best known for its support of Ceph, iSCSI, and NFS, it also works seamlessly with Fibre Channel when configured correctly at the. A Fiber Channel SFP is a specialized optical transceiver designed exclusively for Fiber Channel (FC) networks, enabling high-speed, low-latency, and lossless data transmission in Storage Area Network (SAN) environments. Known for its ultra-low latency, lossless transmission, and strong security, FC enables efficient and stable communication between servers and storage systems. It is used primarily for storage area networks (SANs).