2X 100Gb/s QSFP28 Ports PCIE 4.0 X16 Intelligent RDMA Enabled InfiniBand & Ethernet Adapter for HPC, Web 2.0, Cloud and Storage Servers, Mellanox ConnectX-5 EX MT28808A0 Ethernet Controller (CX556A)

1. CX556A is a PCIE GEN 4.0 X16 (256Gb/s bandwidth) interface to 2X 100Gb/s QSFP28 fiber ports intelligent RDMA enabled InfiniBand and Ethernet VPI Adapter. Powered by the Mellanox ConnectX-5 EX InfiniBand and Ethernet controller, it delivers 2X 100Gb/s InfiniBand or Ethernet connections simultaneously on servers, with advanced application offloading capabilities optimized for HPC, Web 2.0, Cloud and Storage environments. ^^
2.
InfiniBand and Ethernet Controller: Mellanox ConnectX-5 EX MT28808A0;
Bus Interface: PCIE GEN 4.0 X16;
Connection Speed: 2X 100Gb/s InfiniBand or
Ethernet;
Connector Type: 2X QSFP28 Ports;
Remote Boot: RoCE, PXE, UEFI, iSCSI, Remote boot over InfiniBand, Remote boot over Ethernet; Supports RDMA over RoCE; Support I/O Virtualization and SR-IOV.
SR-IOV: 512 virtual functions and 8 physical functions. ^^
3.
InfiniBand

Specifications

: Compatible with IBTA Specification 1.3. Support EDR 100Gb/s, FDR 56Gb/s, QDR 40Gb/s, DDR 20Gb/s, SDR 10Gb/s standard.
Storage Offloads: NVME over Fabrics offloads.
Storage Protocols: SRP, iSER, NFS, RDMA, SMB Direct, NVME-OF. Support hardware offload of encapsulation and decapsulation of VXLAN, NVGRE, and GENEVE overlay networks. Support QoS for virtual machine. ^^
4.
Ethernet

Specifications

: IEEE 802.3 cd, 50Gb/s and 100Gb/s; IEEE 802.3 bj, bm 100Gb/s; IEEE 802.3 by 25Gb/s, 50Gb/s; IEEE 802.3 ba 40Gb/s; IEEE 802.3 ae 10Gb/s; IEEE 802.3 az; IEEE 802.3 ap; IEEE 802.3 ad; 802.1AX Link Aggregation; IEEE 802.1Q, P VLAN tags and priority; IEEE 802.1Q au Congestion Notification; IEEE 802.1Q az; IEEE 802.1Q bb; IEEE 802.1Q bg; IEEE 1588 V2; Support Jumbo frame ( 9.6KB ). ^^ 5. PCIE GEN 4.0 standard, PCIE X16 interface, 256Gb/s bandwidth, ensure 2X QSFP28 ports archive 100Gb/s InfiniBand and Ethernet connection simultaneously. Auto negotiates to PCIE X16, X8, X4 lane. Compatible with PCIE GEN 5.0, PCIE GEN 4.0, PCIE GEN 3.0 and PCIE GEN 2.0 standard slot. ^^
6. Support plug and play on Windows 11, 10 64bit and Windows Server 2012, 2012R2, 2016, 2019, 2022, 2025 64bit. Compatible with RHEL, CentOS, FreeBSD, VMware and most of Linux kernel-based systems. ^^
7. Support Open Fabrics Enterprise Distribution (OFED) and Open Fabrics Windows Distribution (WinOF-2). Compatible with QSFP28 Transceivers, QSFP28 DAC cables and QSFP28 AOC cables with 50GbE, 100GbE, 200GbE PAM4 ethernet links.