Dell XXV710-DA2 Dual 2-Port 25GB SFP28 PCIe Network Adapter NIC HN7J7

Product Overview

The Intel Ethernet Network Adapter XXV710-DA2 (Dell 0HN7J7) is a high-performance 25GbE network interface card designed for servers requiring high bandwidth, cloud deployment, and network virtualization. It belongs to the Intel Ethernet 700 Series family and offers backward compatibility with 10GbE and 1GbE speeds, providing a highly scalable migration path to 25GbE infrastructure.

Technical Specifications

General Information

• Manufacturer: Intel / Dell

• Dell Part Number (DP/N): 0HN7J7 / HN7J7

• Intel Model: XXV710-DA2

• Device Type: Network Interface Card (NIC) / Converged Network Adapter

• Form Factor: Plug-in Card (Low-Profile / Full-Height brackets available)

Hardware Features

• Controller / Processor: Intel Ethernet Controller XXV710-AM2

• Bus Type: PCI Express 3.0 x8 (PCIe v3.0)

• Data Transfer Rate: 25 Gbps per port (Up to 50 Gbps bi-directional throughput)

• Interface / Ports: 2 x 25Gb Ethernet – SFP28 Cages

• Network Technology: 25GBASE-X

• Data Link Protocols: 1GbE, 10GbE, 25GbE

Connectivity Support

• SFP28 Direct Attach Copper (DAC) Cables: Twinax copper cables

• SFP28 Optical Transceivers: 25GBASE-SR, 25GBASE-LR

• SFP+ Compatibility: Backwards compatible with SFP+ Direct Attach Copper (10G), 10GBASE-SR, and 10GBASE-LR optics.

Advanced Software & Protocol Features

Network Virtualization Offloads

• VXLAN (Virtual Extensible LAN)

• NVGRE (Network Virtualization using Generic Routing Encapsulation)

• GENEVE (Generic Network Virtualization Encapsulation)

• VXLAN-GPE with Network Service Headers (NSH)

• MPLS (Multiprotocol Label Switching)

I/O Virtualization & Traffic Steering

• SR-IOV (Single Root I/O Virtualization): Up to 128 Virtual Functions (VFs) per device for optimal CPU utilization in virtualized environments.

• VMDq (Virtual Machine Device Queues): For intelligent hardware offloads.

• Intel® Ethernet Flow Director: Hardware-based application traffic steering.

• DPDK (Data Plane Development Kit): Optimized for efficient and accelerated small packet processing.

Ethernet Layer 2 & Management Features

• VLAN Support: IEEE 802.1Q VLAN support with VLAN tag insertion, stripping, and packet filtering (up to 4,096 VLAN tags).

• Jumbo Frames: Up to 9728 bytes.

• Flow Control: IEEE 802.3x flow control support.

• Quality of Service (QoS): IEEE 802.1p Class of Service (CoS).

• Time Synchronization: IEEE 1588 / 802.1as Time Sync.

• Checksum Offload: TCP/UDP/IP/SCTP Checksum Offload, Large Send Offload (LSO), and Receive Side Scaling (RSS).

Teaming & Redundancy Support

• Adapter Fault Tolerance (AFT)

• Switch Fault Tolerance (SFT)

• Adaptive Load Balancing (ALB)

• Virtual Machine Load Balancing (VMLB)

• IEEE 802.3ad (Link Aggregation Control Protocol / LACP)

Physical & Environmental Parameters

Power Consumption

• Maximum Power: ~14.1 W

• Typical Power: ~13.0 W

Environmental Limits

• Operating Temperature: 0 °C to 55 °C (32 °F to 131 °F)

• Storage Temperature: -40 °C to 70 °C (-40 °F to 158 °F)

• Operating Humidity: 85% maximum non-condensing relative humidity

• Airflow Requirements:

  • 100 LFM @ 55 °C required for Direct Attach Copper (DAC)

  • 250 LFM @ 55 °C required for SR Optical modules

Operating System Support

• Microsoft Windows Server (2012 R2, 2016, 2019, 2022, and newer)

• Linux (Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Ubuntu, CentOS)

• VMware vSphere / ESXi

• FreeBSD