MODEL Whisper SERIES CASE TYPE FULL TOWER Steel FRONT PANEL MATERIAL ALUMINUM/PLASTIC DIMENSIONS (W x H x D) 211.5 X 521.5 X 562 mm COOLING SYSTEM FRONT, 1 X 120mm Blue LED (included) REAR, 1 X 120mm, 2 x 80mm fans (included) DRIVE BAYS 6 DRIVE BAYS 6 EXTERNAL 5.25" DRIVE BAYS 1 3.5" External bracket 9 INTERNAL 3.5" DRIVE BAYS Screwless Rail Design MATERIAL(S) Steel Construction EXPANSION SLOTS 7 POWER SUPPLY 500 WATT PS2 ATX 12V 2.0 ( OPTIONAL ) WEIGHT 12.3 KGS (W/O Power) MOTHERBOARD SUPPORT MOTHERBOARDS: E-ATX ATX, MICRO-ATX, BABY AT http://www.nzxt.com/products/whisper/