Download big files with PowerShell

I tried the following

Invoke-WebRequest -Uri "https://download.microsoft.com/download/6/4/8/648EB83C-00F9-49B2-806D-E46033DA4AE6/ExchangeServer2016-CU1.iso" -OutFile "Exchange.iso"

But this Fails with "OutOfMemory".

Then i tried -TransferEncoding "chunked" which tells me that i have to set the "SendChunked" property first.

The Documentation doesn't tell how, where and when to set this property...