Cisco-Linksys PCMPC200 EtherFast 10/100 CardBus PC Card 32-bit 10BaseT/100BaseTX network adapter for CardBus notebooks Runs in half- and full-duplex modes at speeds of 10 Mbps to 200 Mbps Automatically senses and negotiates cabling duplex, polarity, and speed Low 5 volts/640 mW power consumption conserves notebook PC battery life Hot swappable--insert or remove from PC without powering down