what is the warranty on these?

Hello Elvis, Thank you for contacting us in regards to your question. This HP Prodesk 600 G2 is being offered through a Newegg Marketplace Seller. They did not provide any warranty information so there is a high chance it does not have a warranty. For more information, please contact them directly through their Seller Profile page. https://www.newegg.com/EPC/about Thank you, Newegg Support