The Cisco InfiniBand Host Channel Adapters (HCAs) deliver industry-leading bandwidth and latency performance to InfiniBand-based server clusters. High performance computing environments utilizing Cisco InfiniBand HCAs will benefit from increased cluster efficiency and application productivity, maximizing Return On Investment (ROI).As an integral part of the Cisco SFS Family of server fabric switches, the Cisco InfiniBand HCAs support Message Passing Interface (MPI), IP over InfiniBand (IPoIB), Sockets Direct Protocol (SDP), and SCSI RDMA Protocol (SRP). SDP and SRP use Remote Direct Memory Access (RDMA) to support the most demanding high-performance computing and storage applications.