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  • Mellanox ConnectX-5 Single/Dual-Port Adapter Supporting 100Gb/s Ethernet  - Part ID: MCX516A-CCAT

Mellanox ConnectX-5 EN network interface card, 100GbE dual-port QSFP28, PCIe3.0 x16 - Part ID: MCX516A-CCAT

Industry-leading throughput, low latency, low CPU utilization and high message rate, Innovative rack design for storage and Machine Learning based on Host Chaining technology, Smart interconnect for x86, Power, ARM, and GPU-based compute and storage platforms, Advanced storage capabilities including NVMe over Fabric offloads, Intelligent network adapter supporting flexible pipeline programmability, Cutting-edge performance in virtualized networks including Network Function Virtualization (NFV), Enabler for efficient service chaining capabilities



5 lbs
Ships within 3-5 Days



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Call us for special price 408 895 5000 x 1
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  • 100Gb/s Ethernet per port and all lower speeds
  • Up to 200M messages/second
  • Adaptive Routing on Reliable Transport
  • NVMe over Fabric (NVMf) Target Offloads
  • Back-End Switch Elimination by Host Chaining
  • Embedded PCIe Switch
  • Enhanced vSwitch / vRouter Offloads
  • Flexible Pipeline
  • RoCE for Overlay Networks
  • PCIe Gen 4 Support
  • IBM CAPI v2 support
  • Erasure Coding offload
  • T10-DIF Signature Handover
  • Mellanox PeerDirect™ communication acceleration
  • Hardware offloads for NVGRE and VXLAN encapsulated traffic
  • End-to-end QoS and congestion control
  • Hardware-based I/O virtualization

Technical Specification

  • 100GbE / 50GbE / 40GbE / 25GbE / 10GbE / 1GbE
  • IEEE 802.3bj, 802.3bm 100 Gigabit Ethernet
  • IEEE 802.3by, Ethernet Consortium 25, 50 Gigabit Ethernet, supporting all FEC modes
  • IEEE 802.3ba 40 Gigabit Ethernet
  • IEEE 802.3ae 10 Gigabit Ethernet
  • IEEE 802.3az Energy Efficient Ethernet
  • IEEE 802.3ap based auto-negotiation and KR startup
  • Proprietary Ethernet protocols (20/40GBASE-R2, 50/56GBASE-R4)
  • IEEE 802.3ad, 802.1AX Link Aggregation
  • IEEE 802.1Q, 802.1P VLAN tags and priority
  • IEEE 802.1Qau (QCN)
  • Congestion Notification
  • IEEE 802.1Qaz (ETS)
  • IEEE 802.1Qbb (PFC)
  • IEEE 802.1Qbg
  • IEEE 1588v2
  • Jumbo frame support (9.6KB)
  • Hardware-based reliable transport
  • Collective operations offloads
  • Vector collective operations offloads
  • PeerDirect™ RDMA (aka GPUDirect®) communication acceleration
  • 64/66 encoding
  • Extended Reliable Connected transport (XRC)
  • Dynamically Connected transport (DCT)
  • Enhanced Atomic operations
  • Advanced memory mapping support, allowing user mode registration and remapping of memory (UMR)
  • On demand paging (ODP)
  • MPI Tag Matching
  • Rendezvous protocol offload
  • Out-of-order RDMA supporting Adaptive Routing
  • Burst buffer offload
  • In-Network Memory registration-free RDMA memory access
  • RDMA over Converged Ethernet (RoCE)
  • TCP/UDP/IP stateless offload
  • LSO, LRO, checksum offload
  • RSS (also on encapsulated packet), TSS, HDS, VLAN and MPLS tag insertion / stripping, Receive flow steering
  • Data Plane Development Kit (DPDK) for kernel bypass applications
  • Open VSwitch (OVS) offload using ASAP2
    -     Flexible match-action flow tables
    -     Tunneling encapsulation / de-capsulation
  • Intelligent interrupt coalescence
  • Header rewrite supporting hardware offload of NAT router
  • NVMe over Fabric offloads for target machine
  • Erasure Coding offload - offloading Reed Solomon calculations
  • T10 DIF - Signature handover operation at wire speed, for ingress and egress traffic
  • Storage Protocols:
    -     SRP, iSER, NFS RDMA, SMB Direct, NVMf
  • RoCE over Overlay Networks
  • Stateless offloads for overlay network tunneling protocols
  • Hardware offload of encapsulation and decapsulation of VXLAN, NVGRE, and GENEVE overlay networks
  • Single Root IOV
  • Address translation and protection
  • VMware NetQueue support
  • SR-IOV: Up to 512 Virtual Functions
  • SR-IOV: Up to 16 Physical Functions per host
  • Virtualization hierarchies (e.g., NPAR and MultiHost, when enabled)
    -     Virtualizing Physical Functions on a physical port
    -     SR-IOV on every Physical Function
  • Configurable and user-programmable QoS
  • Guaranteed QoS for VMs
  • Open MPI, IBM PE, OSU MPI (MVAPICH/2), Intel MPI
  • Platform MPI, UPC, Open SHMEM
  • NC-SI over MCTP over SMBus and NC-SI over MCTP over PCIe - Baseboard Management Controller interface
  • SDN management interface for managing the eSwitch
  • I 2 C interface for device control and configuration
  • General Purpose I/O pins
  • SPI interface to Flash
  • JTAG IEEE 1149.1 and IEEE 1149.6
  • Remote boot over Ethernet
  • Remote boot over iSCSI
  • Unified Extensible Firmware Interface (UEFI)
  • Pre-execution Environment (PXE)


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Supermicro Partner
Memory usage: real: 22806528, emalloc: 22378696
Code ProfilerTimeCntEmallocRealMem