25GbE Ethernet Network Adapter E810-XXVDA2 Dual SFP28 Port Pcie 4.0 x8, 10/25G Network Card(NIC) Support Windows,Linux

The E810-XXVDA2 is a dual-port 10/25GbE SFP28 PCIe 4.0 x8 network adapter for servers, workstations, and homelabs that need two high-speed fiber or direct-attach network connections.

Recommended For

• Home-lab and NAS builders moving large files between servers can use the dual-port 10/25GbE connection when their systems and network gear support SFP28.
• Server administrators building virtualized or storage networks can consider it for workloads that benefit from features such as SR-IOV, traffic management, or RDMA.
• Small-business or lab teams connecting compatible servers to a 10/25GbE switch can use the two ports for high-speed links where 1GbE or 10GbE is insufficient.
• Linux or Windows server users comfortable checking drivers and adapter compatibility can evaluate it for a wired network upgrade; Intel provides E810-series driver downloads for both operating systems.

Real-World Use Scenarios

• When moving large files between a Linux workstation and a fast NAS, users can use the E810-XXVDA2 to create a 25GbE link; community testing reports sustained 25GbE transfers in a suitably equipped setup, though storage speed and software configuration still matter.
• In a virtualization server, users can assign network capacity to multiple virtual machines or workloads; the adapter supports SR-IOV and virtual-machine device queues, but realizing the benefit depends on hypervisor and network configuration.
• For a homelab router or firewall, users can connect high-speed WAN or LAN links alongside slower network connections; a reported OPNsense build uses E810-XXVDA2 cards for this role, with the actual throughput depending on the system and configuration.
• When upgrading a server or workstation network in stages, users can connect the adapter to compatible 10GbE or 1GbE equipment and later move to 25GbE; the connected switch, cabling, and peer device must support the intended speed.
• In a small server cluster, users can link a NAS and multiple client machines for shared storage or large data transfers; the practical result depends on the storage drives, network topology, and whether the client systems can use the available bandwidth.

Spec Summary