Sonnet RACK-PRO-1X Rackmac Pro Rack Mounting Chassis Secure rack mount enclosure Wide Compatibility4U height, shallow mounting depth, standard mounting holes, and rackmount extension rails enable easy installation into any standard equipment rack Improved DesignNew captive thumbscrews and dual faceplates make computer installation and cable access easier Front Panel Peripheral ConnectivityUSB 3.0 ports support connection of a USB peripheral (keyboard, flash drive, etc.) to each computer Rear Panel ConnectivityPanel-mount HDMI, Gigabit Ethernet, USB 3.0, and power cables connect the Mac Pro's ports to ports on the back of the RackMac Pro for convenient external cable connection