Display Link Speed and Duplex Speed Information
Windows 8, 8.1, Server 2012, and Server 2012 R2 has a PowerShell cmdlet called: Get-NetAdpater. This tool can be used to quickly get critical network information from a system, such as Half or Full Duplex settings. Below is the command to get the Name, Description, MAC, Duplex, and LinkSpeed of your network adapter: Get-NetAdapter | Select-Object -Property Name,