The Connectland CL-HD-MRUCD 5.25" bay tray less mobile rack for 3.5" SATA III hard drives can be installed into any open 5.25" drive bay, providing easy access to a bare 3.5" hard drive from the front of a computer case. To remove the hard drive, simply hit the eject button to unlock the access door, allowing the drive to be pulled out of the computer without having to dismount the drive. The mobile rack is also encloused with rear exhaust fan keeping the HDD cool during heavy use.