Power Supplys Loud! If I Buy A Computer In Ireland And Move Back To The US Can I Swap The Power Supplys?

If I buy a computer in Ireland and move back to the US can I swap the power supplys? - power supplys loud!

To add the title of IM in Ireland, here are looking to buy a computer, I found one I like it when I return to the United States to my work computer when I get the strength, PTZ change?