At the core of the Jetall GPU is a processor which acts as the main hub for the electrical and moving parts in the unit. The processor performs constant checks of the GPU state and condition and when needed, all these notifications are displayed on the main control panel. The units use Marathon alternators which are maintenance-free and the Perkins power plants meet EPA Tier II and Tier III. The Jetall GPU is set up in a modular fashion for quick and easy maintenance. Jetall GPUs are available for AC and/or DC applications. For more information visit www.jetallgpu.com.