* Solid 0.5mm SECC inner chassis * Solid 0.5mm SECC top/ side panels construction * Front build-in access USB, audio & jack port * Structure Size: 400( L) * 180( W) * 410( H) mm * Drive bay: 5.25" x4 ( Exposed ) 5.25" x1 ( Hidden) * 3.5" x 1 ( Exposed ) 3.5" x 5 ( Hidden ) * Expansion Slots x 7 * Back side can fix 8 or 9cm fan