The 25gb CX4121A network interface card with 25Gb/s Ethernet connectivity enables data centers to leverage leading interconnect adapters to increase their operational efficiency to improve server utilization and maximize application productivity, while reducing total cost of ownership (TCO). Meets the needs of a variety of demanding markets and applications. Accelerated Switching and Packet Processing (ASAP) for Virtual Switches/RoutersLow Latency RDMA over Converged Ethernet (RoCE) Delivers High-performance ServicesCutting-edge Performance in Virtualized Overlay Networks including NFVEnd-to-end QoS and Congestion Control to Anticipate and Eliminate CongestionEfficient I/O Consolidation, Lowering Data Center Costs and ComplexitySupport Windows, RHEL/CentOS, VMware, FreeBSD, OFED and WinOF-2UEFI Enable