♦High quality mesh drive bay cover with removable foam for easy
  cleaning and providing superior airflow for maximum cooling
  performance.
♦Multi-media I/O ports installed in the first bay for users' easy access.
♦Specially-designed drive bay cover for HDD modular rack with built-in
  and removable dust filter. It's washable for repeat use and also can
  stop the dust from entering the housing.
♦Smoothly steel mesh with no sharp design for user protection.
♦Red LED lights showing Hard Disk working status are embedded in
  the top middle and bottom middle of panel.

♦Dimension:200(W)*480(D)*430(H)mm (With front panel)
♦Drive Bays:
  External:5.25"*3 + 3.5"*1
  Internal:3.5"*4
♦Mother Board:ATX/Micro ATX
♦Metal Thickness:SECC 0.65mm
♦Expansion Slots:7
♦Cooling Fan:Front:12cm/Rear:12cm
♦I/O interface:2*USB 2.0/AUDIO/E-SATA
♦Screwless Chassis:Sliding-track
♦Power supply tye:Standard ATX PS2
♦Measurement/CTN:1.93'
  Q'TY in 20':520pcs
  Q'TY in 40':1080pcs