You can find a great selection of cases on proshop.fi, whether you want a neutral office cabinet for your PC, a wild and luminous gamer case with side window for your computer or case/rack for the company's next server.
When choosing your case, there are several things you should be aware of. First and foremost, make sure the case is big enough for your motherboard. The motherboards come in sizes like Extended ATX, ATX, micro-ATX and Mini ITX. For example, if your motherboard has the ATX form factor, be sure to also buy a cabinet that supports ATX. However, most cases that support ATX can also support motherboards with the form factor micro-ATX, since this is smaller than ATX.
You should also be aware of the size of the case. For example, choosing a Fulltower, Miditower or Minitower determines how many components you can fit in the cabinet and how much space the cabinet takes in the room. The bigger the tower/case you choose, the better chance there is for good airflow that can cool the components that require cooling.
To make the cooling of components in the computer better, you can buy case coolers that increase the flow of air in the cabinet. Many cases already come with 1 or 2 case coolers and support the installation of more cabinet coolers.