Chelsio T520-CR Network Interface Card PCIe Adapter

Chelsio T520-CR is a dual-port 10 GbE Unified Wire network adapter that plugs into a PCIe 3.0 x8 host bus, delivering high-throughput, low-latency connections in data-center servers. It features two SFP+ ports, enabling flexible 10 GbE fiber or DAC connections in a compact, low-profile form factor suited for dense rack deployments. The on‑card offload engine handles TCP/IP, iSCSI, FCoE, and iWARP RDMA, reducing host CPU load while boosting overall I/O efficiency. With support for up to 32K connection entries, it is well-suited to virtualization, cloud, HPC, and storage‑intensive workloads where steady throughput and predictable latency matter. Chelsio’s Unified Wire architecture combines advanced networking and storage offloads to streamline data paths, while the two SFP+ ports provide versatility for copper/fiber connectivity as requirements evolve. This model is commonly deployed in servers and blades that require scalable, low‑latency 10 GbE performance without heavy host processing overhead, making it a practical choice for virtualized environments, software‑defined storage, and demanding network tasks.