Intel I226-V Dual-Port 2.5G PCI-E X1 RJ45 Server Network Card — 2.5G Gigabit Ethernet Adapter, Support Windows/10/11/Windows server/2022

Powered by the original Intel I226-V chipset, this dual-port server NIC delivers flexible link speeds of 10M/100M/1000M/2.5Gbps and supports both full-duplex and half-duplex operation for a range of network environments. The adapter provides reliable 2.5G access while remaining backward compatible with lower link rates. Designed for sustained performance, the card uses offload acceleration processing to reduce CPU load and features a larger heat sink to improve thermal dissipation in constrained cooling conditions, helping ensure long-term stable operation. Each port supports adaptive rates from 10M up to 2.5Gbps in full- and half-duplex modes and is suitable for various network scenarios. Functionality includes PXE, VL aggregation, Hi-Spider Router support, flow control, and compatibility with software routers and industrial switches. The card plugs into the PCI-E bus via PCI-E X1 gold-plated contacts, which resist surface oxidation to maintain good electrical conductivity and extend contact life. It conforms to PCIe 3.1 (5 GT/s) x1 and is compatible with x4, x8, and x16 slots. Physical connectivity uses RJ45 and the card is suitable for CAT5e, CAT6, and CAT6A cabling.