80 PLUS pertains to a voluntary certification program intended to promote energy efficient computer power supply units (PSUs). It confirms that the power supply has a minimum efficiency of 80% at specific loads (20%, 50%, and 100% of maximum rated capacity). In simpler terms, an 80 PLUS certified PSU will waste 20% or less of its input power, with at least 80% being used to power the computer.

Cybenetics offers two distinct certification programs.ETA focuses on the efficiency of the PSU. ETA certification tests efficiency across a wide range of loads, providing a more thorough understanding of a PSU's efficiency behavior.LAMBDA pertains to the noise output of a PSU. The LAMBDA certification gives users an idea of how noisy a PSU might be under operation, which is crucial for those building silent or low-noise PCs