This is a really nice computer. The CPU is not quite new enough to run Windows 11 but it came with Windows 10. It has DDR4 memory and a solid state drive. I will be installing Linux Mint on it which will absolutely scream. Probably leave Windows 10 and make it a dual boot system. It matters who you buy from. Mine came from Skytech USA. It cost about $5 to $8 dollars more than some others but it was worth it. It looks new and works like new. I'm happy with it.