Move server connectivity to 10/25 GbE with the HPE Ethernet 10/25Gb 2-port 640SFP28 Adapter, a certified replacement part designed for environments where bandwidth growth and hardware consistency both matter. As a functional equivalent for HPE 817753-B21, it gives teams a direct replacement path without introducing uncertainty into the network layer. The dual-port SFP28 design supports modern fiber uplink requirements while preserving the compact footprint expected in dense server deployments. That makes it a strong fit for infrastructure teams standardizing on higher-speed Ethernet, especially where port count, cabling discipline, and upgrade planning all affect operational cost. For procurement, this adapter helps justify spend by reducing compatibility risk and keeping sourcing aligned with the original platform. For operations, it supports faster recovery when a network interface fails and simplifies inventory decisions for maintenance windows and lifecycle support. When the server NIC is part of the performance ceiling, choosing the right replacement matters. This adapter is built to keep that ceiling higher.