Product Overview Upgrade your network with Intel I226 dual 2.5G PCIe card for NAS & servers. Two independent ports support link aggregation for doubled bandwidth. Integrated aluminum heatsink sustains stable heavy-load performance. Dual brackets fit standard and slim SFF PCs. PCIe x1 compatible with all motherboards, works on Windows, Server and Linux. Product Specifications Model: FENVI Intel I226 Dual 2.5G PCIe NIC Bus Interface: PCIe x1 Ports: 2 independent RJ45 ports Auto Speed: 2500Mbps / 1000Mbps / 100Mbps per port Cooling: Stacked black aluminum passive heatsink Brackets: Full-height bracket + low-profile slim bracket Required Cable: Cat5e / Cat6 Ethernet cable Supported OS: Windows 10/11, Windows Server, Linux.