The ZM-T1 supports bottom PSU installation for effective cooling of PSU & inner space of case. Front right & left vents provide cool air into the system. USB (Universal Serial Bus) ports, audio socket, power & rest buttons set in the front for user convenience. Dust filters on the bottom side prevent dust from entering. Without the side guide 290 mm high performance VGA card can be installed. Anti-slip rubber at the bottom of the case & the PSU helps to eliminate vibration sound.