What are the hardware constraints of the Lenovo ThinkCentre M70q Gen 2's 1-liter chassis?

Regarding the Lenovo ThinkCentre: The M70q Gen 2’s 1-liter Tiny chassis forces SO-DIMM RAM and a single 2.5-inch drive bay capped at 7mm. Full-size DIMMs and 3.5-inch drives simply won’t fit.