Product overview The M5081-2QS is a PCIe dual-port 40/56G fiber Ethernet server adapter card developed based on the Mellanox ConnectX-3 master control solution. The network ports used comply with the InfiniBand v1.2.1 specification. InfiniBand data communication traffic is transmitted via QSFP+ connectors. Using this server adapter card, it is easy to design and apply more efficient servers and data centers in the general IT industry, The M5081-2QS network features flexible IB and ETH switching capabilities, enabling the connection of different networks in the market and application ends to address network cabling issues. In virtualized infrastructure, it provides a highly cost-effective and flexible networking solution for Web 2.0, cloud, data analysis, database, and storage platforms. As data usage and new applications grow exponentially, the demand for high throughput, low latency, virtualization, and complex data acceleration engines continues to rise. The M5081-2QS offers 40/56GbE bandwidth, extremely low latency rates, and local hardware support including integrated Ethernet, Ethernet stateless offloading engine, and GPUDirect technology, enabling data centers to improve operational efficiency, increase server utilization, and maximize application productivity. This server adapter card is used to meet the needs of network traffic and data diversion, processing and virtualization and big data computing for adaptive servers, workstations and Internet data centers.