PCIe Gen 4.0 Dual 100G QSFP56 2-port network controller card. Mellanox ConnectX 6 chipset. Supports 100GbE, 50GbE, 40GbE, 25GbE, and 10GbE.

The PCIe x16 Mellanox ConnectX-6 Dx Dual-Port 100G network adapter is a highly secure and advanced smart network interface card (SmartNIC) that accelerates mission-critical cloud and data center applications, including security, virtualization, SDN/NFV, big data, machine learning, and storage. 
ConnectX-6 Dx provides up to two ports of 100Gb/s, ConnectX-6 Dx features virtual switch (vSwitch) and virtual router (vRouter) hardware accelerations delivering orders-of-magnitude higher performance than softwarebased solutions. 
ConnectX-6 Dx supports a choice of single-root I/O virtualization (SR-IOV) and VirtIO in hardware, enabling customers to best address their application needs. By offfoading cloud networking workloads, ConnectX-6 Dx frees up CPU cores for business applications while reducing total cost-of-ownership.

Features
PCIe Gen 4.0 compatible, 16 lanes
Dual ports of 10/25/40/50/100 GbE
Up to 200Gb/s total bandwidth

Enhanced Networking
Zero-Touch RoCE
ASAP² Accelerated Switch and Packet Processing™ for SDN and VNF acceleration
Single Root I/O Virtualization (SR-IOV)
VirtIO acceleration
Overlay network acceleration: VXLAN, GENEVE, NVGRE
Programmable flexible parser
Connection tracking (L4 firewall)
Flow mirroring, sampling and statistics
Header rewrite
Hierarchical QoS
Stateless TCP offloads
Hierarchical QoS
Stateless TCP offloads

Storage Offloads
Block-level encryption: XTS-AES 256/512-bit key
NVMe over Fabrics offloads for target machine
T10 DIF signature handover operation at wire speed, for ingress and egress traffic
Storage protocols: SRP, iSER, NFS RDMA, SMB Direct, NVMe-oF

Advanced PPT Timing and Synchronization
IEEE 1588v2 (any profile)
PTP hardware clock (PHC) (UTC format)
Nanosecond-level accuracy
Line rate hardware timestamp (UTC format)
PPS in and configurable PPS out
Time-triggered scheduling
PTP-based packet pacing
Time-based SDN acceleration (ASAP2)
Time-sensitive networking (TSN)
Dedicated precision timing card option

Management and Control
NC-SI, MCTP over SMBus and MCTP over PCIe—Baseboard Management Controller interface, NCSI over RBT in Open Compute Project (OCP) 3.0 cards

Remote Boot
Remote boot over Ethernet
Remote boot over iSCSI
UEFI and PXE support for x86 and Arm servers