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, InterfaceDescription, MacAddress, FullDuplex, LinkSpeed


Name : Wi-Fi
InterfaceDescription : Intel(R) Dual Band Wireless-AC 7265
MacAddress : XX-XX-XX-XX-XX-XX
FullDuplex : False
LinkSpeed : 144.4 Mbps

There is more information that can be displayed. To view all the property names type:

Get-NetAdapter | Select-Object -Property *

Now you can build your own PowerShell command to display exactly what you want!!


Windows 7 and Server 2008 R2 can also use PowerShell to find similar information:

Get-WmiObject -ComputerName ‘localhost’ -Class Win32_NetworkAdapter | `Where-Object {$_.Speed -ne $null -and $_.MACAddress -ne $null } | `Format-Table -Property SystemName,Name,MACAddress,NetConnectionID,Speed


SystemName : systemname
Name : NVIDIA nForce 10/100/1000
NetConnectionID : Local Area Connection
Speed : 100000000

There is more information that can be displayed. To view all the property names type:

Get-WmiObject -ComputerName ‘localhost’ -Class Win32_NetworkAdapter

You can add or subtract what is displayed.


Keep in mind that there is no such thing as Half-Duplex for 1G and 10G connections.



3 comments on “Display Link Speed and Duplex Speed Information”

  1. Edmond Reply

    Excellent items from you, man. I have have in mind your stuff previous to and you’re just too magnificent. I actually like what you have bought here, certainly like what you’re stating and the best way during which you say it. You’re making it enjoyable and you still care for to stay it smart. I cant wait to read much more from you. That is really a great website.|

Leave A Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.