840139-001 Hewlett Packard Enterprise Ethernet adapter with 2 ports, supporting 10Gb and 25Gb speeds, SFP28 interface, compatible with HPE Gen9 and Gen10 servers. 817749-B21 Server Ethernet adapter with 2 ports, supporting 10Gb and 25Gb speeds, SFP28 interface, compatible with HPE Gen9 and Gen10 servers.Enhance your data center capabilities with the HPE Ethernet 10/25Gb 2-port 640FLR-SFP28 Adapter. This advanced networking solution is expertly crafted for Hewlett Packard Enterprise ProLiant Gen9 and Gen10 servers, delivering exceptional bandwidth with support for both 10GbE and 25GbE speeds. With two high-performance ports, each capable of achieving data transfer rates up to 25Gb/s, this adapter is ideal for enterprise networking, ensuring efficient data flow in demanding environments.The SFP28 interface offers unmatched flexibility, compatible with various transceivers for tailored networking configurations. Internally designed for the FlexibleLOM (FLR) slot, the 640FLR-SFP28 adapter ensures a seamless integration into server infrastructures, supporting rigorous performance standards set forth by IEEE for both 10GbE and 25GbE.Hewlett Packard Enterprise is renowned for providing reliable and innovative server solutions, ensuring high-quality performance and longevity. Trust in EET's expertise for your IT needs, delivering guaranteed authentic products backed by solid technical support.