HPE 665249-S21

(560SFP+) Dual‑Port 10 GbE SFP+ Network Adapter

The HPE 665249‑S21 (nominally 560SFP+ Adapter ) is a dual‑port 10 Gigabit Ethernet network card equipped with SFP+ cages for either DAC or SR fiber connections. Powered by the Intel 82599 (X520‑DA2) chipset, this Adapter delivers full 10 Gbps per port—20 Gbps per direction or 40 Gbps aggregate throughput. Designed for HPE ProLiant Gen8 and Gen9 servers, it offers virtualization-ready features like SR-IOV, RSS, jumbo frames, NIC teaming, and PXE boot capabilities. Ideal for consolidating multiple GbE interfaces into fewer, higher‑capacity 10 GbE uplinks in data center and virtualized environments.

Features

Installed in a PCIe 2.0 ×8 slot, the Adapter works seamlessly in HPE server platforms such as Gen8 and Gen9 ProLiant DL and ML series. Its dual SFP+ ports support direct‑attach copper (DAC) or SR optics, enabling flexible high‑speed uplink deployments. The Adapter enhances performance and reduces overhead through hardware offloads including TCP/UDP checksum, large send segmentation (TSO), MSI‑X interrupts, and RSS for improved parallel packet processing. It supports both IPv4 and IPv6, VLAN tagging, and jumbo frames, optimizing efficiency in virtualized and compute‑heavy applications.

Advanced Options

Built on Intel’s proven 82599 controller (marketed as X520‑DA2), the 560SFP+ Adapter provides excellent reliability and minimal latency suited for high-density virtual server environments. Each port sustains 10 Gbps line rate, offering up to 40 Gbps aggregate throughput over both ports with symmetric forwarding.