Keysight basic DC Power supplies offer essential features for a tight budget. The single and 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 80W, single output E3644A 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. Output ratings (@ 0 deg C to 40 deg C) are: Range 1: 0 to 8 V / 8 A; Range 2: 0 to 20 V / 4 A. Programming accuracy (@ 25 deg C +/- 5 deg C), +/- (% output + offset) is: Voltage: