1. Support 10Mbps and 100Mbps 1000Mbps N-way auto negotiation operation 
2. Interated fast ethernet MAC, physical clip and transceiver in one chip 
3. Powered by USB port, and also can connect external power 
4. Support suspend / resume detection ogic 
5. Support both full-duplex and half-duplex operations 
6. Compliant with IEEE 802.3 and 802.3u standars 
7. Compliant with USB interface version 1.0/1.1/2.0/3.0 
8. Expand three high speed USB port to connect USB devices 
9. No need driver in Mac OS 
10. Compliant with Windows 7, Mac OS X etc.