Here are spec:
USB 10/100Mbps FAST Ethernet Adapter
Easy to install
USB 1.0 and 1.1 compliance
Plug and Play with Windows 98/2000.
Compact and Robust design, perfect solution for Notebook and Desktop.
Supports all USB standard commands and suspend/resume detection
Easy-to-Read Indicators, 2 LED for Active, Speed, Full/COL.
Automatic 10 or 100 Mbps negotiation.
Provides full-duplex to enhance throughput.
Bus powered, External Power Supply not Required.