Estone Gigabit Ethernet LAN PCI Express Pci-e Network Controller Card New Compliant with PCI Express rev 1.1 specification Compliant with CSMA/CD protocol Supports Windows XP/Vista/7 32/64-bit, Server 2003 32/64-bit, Linux LED Data Transmission Indicators Supports ACPI Power Management, compliant to ACPI 2.0