A:AnswerIt comes with a 1TB Seagate FireCuda M.2. The PSU is an InWin 650W 80+ Bronze ATX. The Motherboard only has 1 M.2 Slot so you may need to buy a adapter if you want another.
A:AnswerIt comes with SkyTechs own Keyboard (Membrane, Raised Keycaps, Metal back), and Mouse (Not great). I would recommend getting your own though as neither are super comfortable.