Intel /25 Gigabit SFP28 x 4 PCIe 4.0 x16 10 Ethernet Network Adapter

The Intel E810XXVDA4 is a PCIe 4.0 x16 network adapter that equips a server with four SFP28 ports, each able to run at 25 gigabit Ethernet. The card supplies up to 100 gigabits per second of aggregate bandwidth, removing bottlenecks when large data sets move between compute nodes, storage appliances, or backup targets.

Every port can downshift to 10 or 1 gigabit speeds, so you can connect to existing switches while planning for a future 25 GbE backbone. The cages accept direct attach copper cables for short top-of-rack links or optical transceivers for longer runs, giving you flexibility without swapping hardware.

An Intel E810 controller sits at the center of the adapter. Offload engines for RDMA, RoCEv2, and iWARP create low-latency data paths that benefit databases, high performance computing jobs, and real-time analytics. Features such as SR-IOV, virtual machine device queues, and flexible port partitioning help virtualization platforms maintain consistent throughput while keeping CPU usage in check. Built-in support for iSCSI and NFS lets you converge storage traffic onto the same network, reducing the need for separate adapters.

Whether you are expanding a VMware or KVM cluster, feeding bandwidth-hungry containers, or connecting a software-defined storage pool, the E810XXVDA4 installs quickly and delivers the throughput and versatility that modern data centers expect.

Highlights:

• Four SFP28 ports that deliver 25 GbE each
• Selectable 25, 10, or 1 GbE speed on every port
• PCIe 4.0 x16 host interface that maximizes throughput
• Works with direct attach copper or optical fiber modules
• Intel E810 controller with advanced offload capabilities
• Supports RDMA, RoCEv2, and iWARP for low-latency traffic
• SR-IOV, VMDq, and flexible port partitioning for virtualization
• Hardware offloads that lower CPU use during heavy I/O
• iSCSI and NFS acceleration for converged storage networks