Business Computer Cases Is It Illegal To Purchase A Computer From One Business And Sell It To A Customer?

Is it Illegal to purchase a computer from one business and sell it to a customer? - business computer cases

I own a computer company and still have customers who need a new computer. Rather than focusing on specific sites in the computer, the device can I sell the slightly Bux and brands to customers? If I can can, in most cases pay for the item and sent a different name and address? Thank you!