• total 6 bays
• 4x3.5" hot swap (SATA, SCSI U320), 1xslim cdrom, FDD, 1x2.5" internal
• Accepts 12"x 13" ATX MB
• 7x4cm cooling fans
• USB port

Specifications:

• Drive Bays:
  1x slim CDROM
  1 x slim cdrom, FDD
  4 x 3.5" trays (SATA, SCSI U320)
• PCI Riser card
• Cooling Fans: 5 x 4cm in the middle, 2x4cm rear
• Power Supply ATX -350-500w
• Dimensions: 19" x 27.6" x 1.74"(W x D x H)
• Gross weight: 40 lbs

Options:

• Riser card with ribbon cable (see riser card notes)
• I/O shield for different mainboard
• Black color only
• Low profile CPU fan
• Fraction Sliding Rails 
• power supply: 350-500