When you buy you will get 256gb M.2 SSD and 1TB HDD. This is a rugged work station machine that’s very perfect for gaming, graphics & 3d rendering and video editing, Four RAM slots upgradable to 64gb RAM, The to total storage can be upgradable to 5TB via Two M.2 SSD slots, One Sata SSD / HDD slot and One optical HDD / SSD slot.