Checking Network Adapter Speed

Sometimes, just one line of PowerShell code gets you all the information you may have needed. There is a .NET type called NetworkInterface, for example, that lists all of your network adapters, their speed and status:

PS> [System.Net.NetworkInformation.NetworkInterface]::GetAllNetworkInterfaces() | Select-Object -Property Description,Speed, OperationalStatus

Description                                Speed OperationalStatus

-----------                                ----- -----------------

Broadcom 802.11n Network Adapter        52000000                Up

VirtualBox Host-Only Ethernet Adapter  100000000                Up

Software Loopback Interface 1         1073741824                Up

Microsoft ISATAP Adapter                  100000              Down

Microsoft ISATAP Adapter #2               100000              Down

Teredo Tunneling Pseudo-Interface         100000              Down