21 inch all in one. Has upgraded ram to 16 gigs of ddr4. Hardrrive has been replaced with a 120 gig ssd. Fresh install of Windows 10 activated. Pretty fast pc. I've attached a link with specs. Has keyboard and mouse. Can be used as a tv with hdmi input on the back. https://villman.com/Product-Detail/Acer_AZ22-780_i5-7400T