Specification: EL BLK MID TWR W/PG+350WP4 P/S - USB PORT : 2 PORT FRONT USB + AUDIO - COLOR : Black - SIDE PANEL : SEE-THRU PANEL - MAIN BOARD SIZE : ATX / MICRO ATX/ P4 / K7 - DRIVE BAYS : 5.25''x 4 (exposed) + 3.5''x 2 (exposed) + 3.5''x 4(hidden) - DIMENSION (WXHXD) : 7.87" x 16.93" x 17.32" - EXPANSION SLOTS : 7 Slots - POWER SUPPLY :PS0-PG-GOLD350W - COOLING FAN : 1X8CM 3-CLR (RED; BLUE ; GREEN) 2ND FAN IS INCLUDED MAX. 2ND FAN SLOT : TOTAL 3 (1 optional 8cm fan in the front + 2 optional 8cm fan in the rear) - MFG WARRANTY : 3 YEAR ON POWER SUPPLY - MEASUREMENT : 0.061CBM