4set 5.25 Inch to 5 x 3.5 Inch SATA HDD Cage Rack — 5-Bay Hard Drive Enclosure with 1x 12cm Fan Slot

Verify there is sufficient room in your PC case before installation — this cage is relatively large. It holds 5x 3.5inch SATA hard drives so you can expand storage with five drives easily. A 1x 12cm cooling fan can be mounted in the provided install slot to improve airflow. The rack is intended for PC cases where the CD-ROM slot inwall is flat or where the CD-ROM slot is a Bracket Installation Type; some cases may not accept this hard drive rack, in which case you would need to DIY modify your case or use the unit externally. Note: this hard drive cage size is about 3 times 5.25inch CD-ROM slot size.