Is it safe to buy 3rd party plug adapters for the MacBook Pro? Apple doesn't sell just the removable plug end of the charger. I know buying 3rd party chargers are unsafe. However, is just the modular plug end safe?

Here is an example of what I am talking about
Yes it is Safe.

That adapter does noting to Mac, it just redirects the socket power in different way.



No changes are made to the Power.