Model: 6806 Dimension:185*408*418mm SECC rolled steel Front USB+Audio port Colors option 4 CD-ROM bay,1 FDD bay,2 HDD Bay(can extension to 5 HDD bay? Compatible with ATX M/B?MICRO ATX M/B and FLEX ATX M/B (assembly big size ATX M/B with 2 CD-ROM bay available) Edge folded techniques,hands-protection design INTEL thermally advantaged chassis design,three 8cm cooling fan optional with enough air duct hole FCC-B design and EMI free Firm and solid metal structure CD-ROM bay tooless design,HDD bay screwless side-drawn design(patent),both convenient for DIY and system-builder Handy screws for side panel Loading:40HQ container 1260pcs