I'm using Unraid for a while now and collected some experience to boost the SMB transfer speeds:   Donate?  🤗   1.) Choose the right CPU The most important part is to understand that SMB is single-threaded. This means SMB uses only one CPU core to transfer a file. This is valid for the server and the client. Usually this is not a problem as SMB does not fully utilize a CPU core (except of real low powered CPUs). But Unraid adds, because of the ability to split shares across