FUJITSU Dual port 40 Gbit/s InfiniBand QDR Mezzanine card Controller type: InfiniBand CX2 Mezzanine Card Certified or supported operating systems and virtualization software: Red Hat Enterprise Linux; Microsoft® Windows Server® 2008 R2 Number of ports 2 Data transfer rate up to 40 Gbit/s Auto Negotiation support Yes Bus interface PCIe x8 Bus type PCIe 2.0 Bus width x8 HW Virtualization SR-IOV Protocol Support InfB: Open MPI , OSU MVAPICH, HP MPI, Intel MPI, MS MPI, Scali MPI, SRP, iSER, NFS RDMA, FCoIB, TCP/UDP, IPoIB, SDP, RDS, uDAPL General features: 10, 20, or 40Gb/s per port Virtualization: Address translation and protection Multiple queues per virtual machine PCISIG IOV compliant VMware NetQueue support