The IBM 4666-AHBH is a set of two adapter cards, each featuring 2 ports capable of 25 Gigabit Ethernet connectivity, and support for RDMA over Converged Ethernet (RoCE). These adapter cards are adept at enhancing server connectivity, cutting-edge performance, and network efficiency, making them perfect for modern data center environments where high throughput and low latency are paramount. The adoption of RoCE technology allows for greater data center consolidation and improved utilization of network resources, enabling high-performance data transfer for storage, database, and cloud applications. Optimized for compatibility with IBM systems, these 25GbE RoCE adapter cards serve as an essential component for enterprises aiming to modernize their network infrastructure and support future growth.