An integrated 100W power supply powers the devices, while a quiet 80 mm fan cools them. If you need to install only one half-height device, blank plates are included to allow you to cover the remaining space to keep a clean look.Installation of devices and the kit itself is easy. The Mobile Rack Device Mounting Kit includes mounting screws to secure your mobile rack devices within the kit's frame. After securing the devices, attach one of the eight included power connectors to each device, connect interface cables to the devices and route them through the cable pass-through opening. Connect the interface cables to cards installed in the Echo or xMac Server Pro chassis, and then secure the entire mobile rack kit assembly inside the rackmount enclosure.