The Sun family of PCIe Quad Data Rate (QDR) InfiniBand (IB) HCAs provides the ultimate price/performance for both throughput and low latency for servers with eight lanes of either low-profile PCIe or modular hot-pluggable PCIe EM form factors.As an integral part of Sun's portfolio of high-density, low-latency fabric products, Sun PCIe IB HCAs support Message Passing Interface (MPI), IP over InfiniBand (IPoIB), Sockets Direct Protocol (SDP), SCSI RDMA Protocol (SRP), Reliable Datagram Service (RDS), NFS over RDMA, and User Direct Access Programming Library (uDAPL). Many of these protocols use Remote Direct Memory Access (RDMA) to support the most demanding high-performance computing and storage applications.Sun PCIe IB HCAs are key building blocks for designing leading price/performance server and storage connectivity solutions for today and tomorrow. Service-oriented I/O ensures scalable and granular quality of service for a converged set of datacenter applications, in both native operating system and virtualized server environments. Multiple network and storage connectivity options on a single Sun PCIe Gen 2.0 IB HCA enhance the deployment options and time to solution. End users can use ConnectX, Mellanox's fourth-generation HCA chip solution for incremental and demand-based I/O growth and scaling.