Hamburger, meet Big Mac—the Pro version has one layer on the Slim version. It's also quite a bit bigger overall.

This behemoth still carries the label PlayStation 4, but the model number on ours is CUH-7015B. We also spot a couple "Warranty void if removed stickers" (booo) and tons of different ports (yay!):

Power

HDMI 2.0

PlayStation extension port

S/PDIF optical audio output

USB 3.0

Ethernet