The MB674SPF-B is our series of internal multi-bay tray-less models that are coming out to the ICY DOCK enclosures. It has a lock system built behind the handle to prevent any unintentional breach to the hard drive. Once the door opens, a mechanism behind the back will gently push the hard drive out for easy access. The handles have hinges on the door, which is firm enough to prevent the handle from breaking and easy enough to open the door without any exertion of force. The detachable fan on the rear is easy to take apart from the enclosure and requires no tools or wiring to remove the fan. The enclosure also has output pins for power access and hard drive access as well as pins to detect hard drive failures for each slot. A toggle switch lets you configure the temperature settings to warn overheating in the bays. The spacing between the hard drives were designed to effortlessly insert and remove drives and the front of the enclosure also have opening to allow better dissipation of heat. Moreover, aluminum panels surrounding the drives will prevent any overheating. This is the ideal enclosure to organize your drives using minimal amount of area on your computer.