How, exactly, did Nvidia manage to cram the guts of a game controller and a smartphone into a portable console? Teardown and repair site iFixit has the answer: it pulled apart the Nvidia Shield to show you the guts of the handheld.

You can see how the cooling system works, pulling air in through the front lip of the device, and using an actual honest-to-goodness fan to exhaust it out the back. iFixit also discovered that quite a bit of room inside the bulky console is devoted to three hefty, cylindrical 18650 lithium-ion batteries. That's a standard, commodity battery type, so you could theoretically replace them with higher capacity cells, but these ones sadly appear to be permanently attached to a circuit board. You'll also find your first glimpse at an actual production Tegra 4 processor, loads of potentiometers, and plenty of modular buttons.