Upgrading my network to gigabit speeds and don't know how to determine if the NIC in one of the systems is capable of gigabit speed. The documentation from the manufacturer states this: Network adapter 10/100/1000 Ethernet LAN on system board However when I go to the properties of the NIC under Speed & Duplex my only options are: 10 Mb Full 10 Mb Half 100 Mb Full 100 Mb Half Auto Is there a command line I can run that will give me more detail about the NIC? Windows 7 x64 OS New Info: The new switch I just bought has a light to indicate 1000Mbps. I can tell from the light that this NIC is indeed negotiating at 1000Mbps but I'd still like to know how to determine this from the console in windows.