Made of high-quality material, durable, firm and sturdy for us to use.Holding 5x3.5 inch Hard Drive Size let you extend 5 Hard Drive easily Please pay attention to the size of the cage and make sure there is enough room for it in your PC case.With Cooling Fan Install Slot space. Hard Drive Cage Adapter Tray Rack Bracket.It's fit for Host Case which CD-ROM Slot InWall is flat, or Bracket Installation Type CD-ROM Slot.Some PC Chassis special design may not support this Hard Drive Rack.HDD Hard Drive Cage only, other accessories demo in the picture is not included 100% brand new and high qualitysize:16.6x14.6x12.8cmMaterial:metalcolour:Black+silverPackage Contents:1 * hard drive cage1 set * screws5 pair * Hard drive railOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.