HPE 840140-001

(640SFP28) Dual-Port 25 GbE / 10 GbE Gigabit Ethernet Adapter

The HPE 840140‑001 (640SFP28) is a high-performance dual-port Gigabit Ethernet Adapter offering flexible connectivity at 10 Gb or 25 Gb speeds. Powered by a Mellanox ConnectX‑4 Lx controller, it delivers scalable bandwidth and low latency, making it ideal for modern cloud, virtualization, and analytics workloads. Designed for HPC, storage access, and high VM-density deployments, this card integrates easily into HPE ProLiant Gen9 and Gen10 servers. Regardless of infrastructure—whether you're transitioning to 25 GbE or maintaining 10 GbE—to deploy future-ready networking, this adapter provides a robust, enterprise-grade solution.

Features

This dual-port SFP28 adapter supports both 10 GbE and 25 GbE operation, with up to 50 Gbps per port and 100 Gbps aggregate bidirectional throughput . It connects via PCIe 3.0 x8 (backward‐compatible with x4 lane), allowing clean installation in standard low-profile slots . Its advanced networking capabilities include packet offloads, jumbo frames, QoS tagging, RoCE v2 for RDMA support, VXLAN/NVGRE encapsulation, VLAN tagging, LACP, PXE boot, and SNMP management Compatible with a wide range of operating systems and virtualization platforms, it integrates seamlessly into enterprise IT infrastructures.

Advanced Options

Engineered for enterprise resilience, the adapter offers consistent throughput and minimal latency using ConnectX‑4 Lx silicon optimized for virtualization and converged workloads . It supports energy-efficient operation (~9.7 W typical power draw), helping to reduce heat and power in dense server environments