The site is really hard to navigate. I eventually looked at the footer and found a link to the technical specifications https://oxide.computer/product/specifications They give an idea of the beast, especially the dimensions and weight
Dimensions H x W x D
2354mm (92.7") x 600mm (23.7”) x 1060mm (41.8")
Weight
Up to ~2,518 lbs (~1,145 kg)
BTW, they are following some no pictures policy. I found only a few pictures of boards but no picture of the product as a whole.