SMC EZ Card 10/100 Fast Ethernet PCI Card (SMC1244TX-1) is an ideal solution for home and small business users who need connectivity to cable or xDSL modems, small gaming LANs, or business networks. SMC1244TX-1 is a 32-bit 10/100 Mbps PCI Fast Ethernet Network adapter that supports full-duplex operation, flow control, and auto-negotiation. These features combine to make them among the simplest to use, most affordable desktop solutions available. Fully auto-configurable upon power-up, they support early receive and transmit interrupt to eliminate typical I/O bottlenecks, and feature bus-master architecture to increase data throughput and minimize CPU utilization. Limited Life Time Warranty. 24/7 Technical Support 1-800-SMC-4YOU.