Keysight basic DC power supplies offer essential features for a tight budget. The single & dual output, 30-100 W GPIB E3640 series provide small, compact size for bench and system use; low output ripple and noise; and built-in measurements and basic programmable features. The Keysight 78W, single output E3645A is a stable and reliable power supply for benchtop and basic automated test applications, and enables versatile solutions for tests that require moderate speed and precision with both GPIB and RS232. DC power needs to be steady as a rock…like a rock for 15 years. Find out how. Counterfeits of this or closely related products have been found in the market. To ensure you are purchasing an authentic Keysight product with the quality and performance you expect, purchase through Keysight authorized distribution partners. Click on the “How to Buy or Rent” button, above, to find authorized distribution partners.