HPe 840139-001 Ethernet 10/25GB 2Port 640FLR-SFP28 Adapter The HPE 840139-001 Ethernet 10/25Gb 2-Port 640FLR-SFP28 Adapter is a high-performance network adapter designed for HPE ProLiant servers, particularly Gen9 and Gen10 models. Here's a summary of its key features and specifications: Key Features: Dual-Port 10/25 Gigabit Ethernet: Offers two SFP28 ports, supporting both 10GbE and 25GbE connectivity. This provides flexibility and future-proofing. High Bandwidth: Delivers up to 50 Gb/s bi-directional Ethernet transfer rate per port, resulting in 100 Gb/s aggregate bi-directional theoretical bandwidth for the adapter. FlexibleLOM Form Factor: This is a proprietary HPE form factor designed for specific ProLiant servers, offering a dedicated slot on the motherboard. PCIe 3.0 x8 Interface: Connects to the server's PCI Express 3.0 x8 slot for high-speed data transfer. It is backward compatible with x4 slots. Warranty: 60day