ZEN3300T is a 10/100/1000Mbps 32-bit PCI-bus Ethernet adapter, the fastest design for Ethernet adapter in the world. With a single RJ-45 and the Auto-Negotiation (N-Way) function, the Card can be auto-negotiated between 10Mbps, 100Mbps or 1000Mbps speed, as well as half and full duplex mode with its link partner (a hub, for example). A 3.3V power consumption is also another good feature to save PCs energy. Full range of drivers are provided for major Operating Systems.