First preliminary I needed a case for a standard ATX MB ordered the Cooler Master N300. Arrived after 3 days and I grabbed the big moving box from. Housing and instructions were there. Built a the MB put an old fan that I had left, and that's my only gripe, it has cracked and gequischt and everything was installed. Everything works and I can recommend it. BUT the fans are still in the next room under full load LISTEN they come from the Cooler Master hell. You drown vacuum cleaner with ease. Dust filter well. Design of taste (I like it)