For your information this PC Comes with$2 generic USB Wifi dongle not M.2 or PCIe wifi card.Has Display Port not HDMI.CPU is i5-4570S @ 2.9GHz not i5-4570 @ 3.2GHzThis is "Ulta Slim" not small form factor. So that means this is a laptop motherboard that uses laptop components. Using a standard size GPU will have to be ran externally through mini PCIe slot.Yes it is possible to game on this computer with external GPUThis computer is great for checking your emails and browsing the internet only. Don't expect a gaming rig with this one though.