PCIe X4 Quad-Port 2.5G Ethernet Network Card – RJ45 LAN Ports, High-Speed Adapter for Servers, Soft Routers, Gaming PCs – Compatible with Windows/Linux/ESXi/Unraid/PVE
This PCIe X4 to 4-Port 2.5G Ethernet Net Work Card is engineered to meet the needs of advanced users who require higher bandwidth than traditional Gigabit LAN, but without the complexity and cost of 10G networking. With four independent 2.5G RJ45 ports and support for full-duplex, high-throughput data transfer up to 2500 Mbps per port, it's ideal for server setups, soft routers, gaming PCs, and virtualization environments.
Designed for wide compatibility, it compatible with Windows (plug & play), Linux (with driver), Unraid, ESXi (6.7U3 with driver or 7.0 with integrated OS), PVE (7.0+ built-in), TrueNAS/Freenas (with driver), OpenWRT, and more. It's also compatible with Synology DSM (models 918/3615), making it a great upgrade path for high-speed NAS and DIY storage solutions.
The card complies with IEEE 802.3bz (2.5GBase-T) and a wide range of advanced networking standards such as jumbo frame support (up to 16KB), VLAN tagging (802.1Q), energy-efficient Ethernet (802.3az), time synchronization (IEEE 1588), and traffic prioritization (802.1P/1Qav), delivering maximum performance, scalability, and reliability in both consumer and enterprise-grade deployments.
Quad-Port 2.5G Ethernet for Maximum Bandwidth
Offers 4 independent 2.5G RJ45 ports via PCIe X4 interface, each supporting 10/100/1000/2500 Mbps speeds — ideal for soft routing, server bridging, or multi-interface gaming setups.

Enterprise-Class Protocol & Feature Support
Supports IEEE 802.3bz (2.5GBase-T), IEEE 802.3az (Energy-Efficient Ethernet), 802.1Q VLAN, Jumbo Frames (16KB), Wake-on-LAN, flow control (802.3x), ECC, CRC, and time sync (IEEE 1588v2).

Advanced Power & System Management
Includes PCIe L1.1/L1.2 sub-state support, ECMA-393 Prox Zzzy sleep mode, AS PM, MSI/MSI-X, and full ACPI power state support (D0/D3) for reduced power draw and smart system behavior.

Ideal for High-Speed Network Upgrades
Designed for users who require faster-than-Gigabit speeds but don't need 10G — perfect for advanced gamers, home labs, DIY NAS, edge servers, and enterprise switch uplinks.