Specifications: Designed with cooling fan install slot space. It can be used to hold 5 x 3.5" hard drive. Made of stainless steel, durable and sturdy. Item Name: HDD Hard Drive Rack Material: 304 Stainless Steel Features: Portable, Durable, with Fan Slot Size: 14.6cm x 16.6cm x 12.8cm/5.75" x 6.54" x 5.04" (Approx.) Notes: Please pay attention to the size of the cage and make sure there is enough room for it in your PC case. It fits for PC case which CD-ROM slot inwall is flat, or bracket installation type CD-ROM slot. Some PC case special design may not support this hard drive rack, then you can only DIY your PC case or use it external, please note before buying. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x HDD Hard Drive Rack 10 x Install Bracket 8 x Fittings (Hard Drive and Fan Not Include)