Vertically rack mounted form factor. Advanced 15 amp power controller with top of the line Linear Noise Filtration, Automatic Voltage Monitoring and catastrophic surge protection. The VT4315-PRO is a full featured power conditioner providing protection and filtration for maximum longevity and performance of connected equipment. BlueBOLT enabled, the VT4315-PRO allows remote reboot of 12 outlets in 8 individually controlled banks as well as the ability to monitor energy use, set alerts, program scheduled commands, and much more. If you are looking for a horizontally rack mounted solution, try the M4315-PRO.