Mellanox ConnectX-4 EN network interface card, 40, 56GbE single-port QSFP28, PCIe3.0 x8, tall bracket

Benefits:
Highest performing silicon for applications requiring high bandwidth, low latency and high message rate
World-class cluster, network, and storage performance
Smart interconnect for x86, Power, ARM, and GPU-based compute and storage platforms
Cutting-edge performance in virtualized overlay networks (VXLAN and NVGRE)
Efficient I/O consolidation, lowering data center costs and complexity
Virtualization acceleration
Power efficiency
Scalability to tens-of-thousands of nodes
Key Features:
100Gb/s Ethernet per port
1/10/20/25/40/50/56/100Gb/s speeds
Single and dual-port options available
Erasure Coding offload
T10-DIF Signature Handover
Power8 CAPI support
CPU offloading of transport operations
Application offloading
Mellanox PeerDirect™ communication acceleration
Hardware offloads for NVGRE and VXLAN encapsulated traffic
End-to-end QoS and congestion control
Hardware-based I/O virtualization
Ethernet encapsulation (EoIB)
RoHS-R6