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2X 100Gb/s QSFP28 Mellanox ConnectX-5 EX MT28808A0 Ethernet Controller (CX556A)
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2X 100Gb/s QSFP28 Mellanox ConnectX-5 EX MT28808A0 Ethernet Controller (CX556A)
Price: US $249.95

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)
Condition: NewShipping: Free for 48 Continental USA ONLYDescription:
  • 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.
  • 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.
  • 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.
  • Ethernet Specifications: IEEE 802.3cd, 50Gb/s and 100Gb/s; IEEE 802.3bj,bm 100Gb/s; IEEE 802.3by 25Gb/s, 50Gb/s; IEEE 802.3ba 40Gb/s; IEEE 802.3ae 10Gb/s; IEEE 802.3az; IEEE 802.3ap; IEEE 802.3ad; 802.1AX Link Aggregation; IEEE 802.1Q,P VLAN tags and priority; IEEE 802.1Qau Congestion Notification; IEEE 802.1Qaz; IEEE 802.1Qbb; IEEE 802.1Qbg; IEEE 1588 V2; Support Jumbo frame (9.6KB).
  • 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.
  • 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.
  • 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.
Details:

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. Operating at the PCIE GEN 4.0 standard with a PCIE X16 interface, it delivers a total bandwidth of 256Gb/s, ensuring both QSFP28 fiber ports achieve 100Gb/s InfiniBand or Ethernet network connectivity simultaneously. Powered by the Mellanox ConnectX-5 EX MT28808A0 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. It supports I/O virtualization with SR-IOV technology, providing dedicated adapter resources and guaranteed isolation and protection for virtual machines within the server. It also supports network function virtualization, allowing a virtual machine to act as a virtual appliance. Full data path operation offloading, hairpin hardware capabilities and service chaining enable data to be processed by the virtual appliance with minimal CPU utilization. It supports overlay networks including VXLAN, NVGRE, MPLS, GENEVE and NSH. In addition, it supports RDMA over Converged Ethernet (RoCE), delivering efficient low-latency and high-performance RDMA services that greatly enhance storage application performance.

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.


Ethernet Specifications:

IEEE 802.3cd, 50Gb/s and 100Gb/s; IEEE 802.3bj,bm 100Gb/s; IEEE 802.3by 25Gb/s, 50Gb/s; IEEE 802.3ba 40Gb/s; IEEE 802.3ae 10Gb/s; IEEE 802.3az; IEEE 802.3ap; IEEE 802.3ad; 802.1AX Link Aggregation; IEEE 802.1Q,P VLAN tags and priority; IEEE 802.1Qau Congestion Notification; IEEE 802.1Qaz; IEEE 802.1Qbb; IEEE 802.1Qbg; IEEE 1588 V2; Support Jumbo frame (9.6KB).


Additional Cutting-Edge Technical Features:

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. 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.


Package List: 1X CX556A, 1X Low Profile Bracket.



Features:

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 for Servers, with advanced application offloading capabilities optimized for HPC, Web 2.0, Cloud, Telecomm and Storage environments.

Mellanox ConnectX-5 MT28808A0 100Gb/s Controller

Powered by the Mellanox ConnectX-5 EX InfiniBand and Ethernet controller, it delivers 2X 100Gb/s InfiniBand or Ethernet connections simultaneously on servers.

2X 100Gb/s InfiniBand and Ethernet

IBTA Specification 1.3. Support EDR 100Gb/s, FDR 56Gb/s, QDR 40Gb/s, DDR 20Gb/s, SDR 10Gb/s .

IEEE 802.3cd, 50Gb/s and 100Gb/s; IEEE 802.3bj,bm 100Gb/s; IEEE 802.3by 25Gb/s, 50Gb/s; IEEE 802.3ba 40Gb/s; IEEE 802.3ae 10Gb/s;Support Jumbo frame (9.6KB).

Windows Servser 2025, 2022 Windows 11, 10 64bit

Plug and play on Windows 11, 10 64bit and Windows Server 2012, 2012R2, 2016, 2019, 2022, 2025 64bit

Linux-Based Systems, RHEL, CentOS, FreeBSD, VMware

Compatible with RHEL, CentOS, FreeBSD, VMware and most of Linux kernel-based systems.

PCIE GEN 4.0 X16 Interface

PCIE GEN 4.0 X16 interface, 256Gb/s bandwidth. Auto negotiates to PCIE X16, X8, X4 lane. PCIE GEN 5.0, 4.0, 3.0, 2.0 slot.

Full Height PC and Slim PC

Works on Full Height PCs, Slim PCs. 4U, Tower, 5U Rack, 6U Rack 1U, 2U Rack, Blade, Mini NAS.

Dual Bracket

Full Height Bracket Pre installed on NIC adapter.

Low Profile Bracket in the package.

QSFP28 100Gb/s AOC Cable

Supports single mode 100Gb/s QSFP28 AOC Cables and multi-mode 100Gb/s, 50Gb/s, 40Gb/s, 25Gb/s mode AOC Cables.

QSFP28 100Gb/s Transcievers100Gb/s QSFP28 DAC CablesFor DATA CENTERFor DESKTOP PC


ENC1000902



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