High quality and Excellent Design. 1.Case dimensions: 507 x 197 x 439mm 2. Material of Case: electrolytic zinc coated steel 3. Drive bays: 4 CD-ROM+1 FDD+5 HDD 4. Front USB support 5. more than 36 different front panels and 18 different front panel frames available 6. 30 different transparent side panels are available