With the accurately located venting holes, the TM-83’s cooling system routes the direction of airflow in order to generate efficient heat dissipation. - Bottom hard drive vents intake cool air for efficient cooling - Hexagon add-on card vents for fast heat dissipation - Side venting holes enhance video card cooling - Rubber anti-shock absorbers hold the hard drive stable in place - Key lock device for anti-theft function - Power switch and hard drive indicator with LED light - Spring-enabled optical drive door for convenient operation Smart Cooling System Made for Small PCs - With the accurately located venting holes, the cooling system routes the direction of airflow in order to generate efficient heat dissipation Specifications Dimension w/Bezel (W x H x D) 175 x 359 x 397mm Case Size MicroATX Mini Tower MB Form Factor micro ATX Drive Bays 5.25" Ext Bay x 23.5" Ext Bay x 13.5" Int Bay x 2 System Fan (mm) Support Rear: 92 /80 x 1 Expansion Slots 4 Color Options (Front/Band/Side) Black/Silver/Black Front I/O Configuration USB x 2 + Audio x 2