The EN-9225TX-E is a 2.5 Gigabit Ethernet PCI Express Server Adapter designed for the high-speed PCI Express bus architecture. It supports 3-speed 2.5G,1G, and 100Mbps network connection with auto-negotiation. The EN-9225TX-E provides an ideal selection as a convenient addition, upgrade or replacement for your server, workstation or computer network connection for high-performance, low-power consumption, and better-quality.