This thing is tiny!
No, it doesn’t resemble a slow-cooker in the least. It’s not even that big! One can have a computer stuffed full of a pair of (extremely capable) graphics cards, a solid-state drive, an Intel Xeon processor, and make it no taller than 25.1 cm and just 16.7 cm across. Macworld has posted photos of the Mac Pro next to some familiar everyday objects if you don’t believe that’s possible.