Comp Modules on 1995 Volvo 850

There is a small "box" in r front corner of motor, it contains 2 "modules" of some sort but there is room for a 3rd. How many should there be? Also an accordion hose that comes from it that appears to attach to the fan. What is it? I've not bought the car yet but could use an answer as soon as possible.

Asked by for the 1995 Volvo 850
Relay or fuse boxes often have space for other control modules or relays and fuses for vehicles with different options or different country have different options. If it is really concerning you is there another 850 you could look at and compare or Autozone have some popular workshop manuals for free on line once you register (for free) on their website There is a company that independent auto repair shops get their information from, this same information is available inexpensively for people that work on their own cars.. The information is year make and model specific, covering repair procedures, torque specifications, fluid capacities and specifications, service bulletins, component locations, wiring diagrams ect.... Alldata is very easy to navigate
1 more answer , 2 more comments
This is the box for the engine and transmission computer. It's normal for there to only be 2 computers, the third spot was for 1993-1994 models and they kept the same box for the later ones. The hose and fan are used to keep the modules cool. All appears normal and there's no need to worry about it.
Does this hose have a specific name? It need to be replaced. Also, in your opinion is a 1 owner vehicle of this type w/170,00 miles worth $1200? Thanks so much!
I don't know what the name is, but if you ask for the "Control Module Housing Ventilation Pipe" that should do. Your best bet may be a wrecking yard to find this piece.
$1200 seems to be a decent price. If it was kept up and maintained you should get another 80K or so.