Comparison · Power supplies

19 V 3.42 A power supply or 5 V 1 A power supply

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Test current: 19 V 3.42 A power supply (5.4 A vs. 1.5).

Model	19 V 3.42 A power supply2022Read review →	5 V 1 A power supply2015Read review →
Test current, A	5.4	1.5
Review conclusion	With reservations	Recommended

Only in one review: Voltage 5 V (5 V 1 A power supply); Power 5 W (5 V 1 A power supply); Ripple 300 mV (19 V 3.42 A power supply); No load 2.2 W (19 V 3.42 A power supply); Protection 5.4 A (19 V 3.42 A power supply); Temperature rise 130 °C (19 V 3.42 A power supply); Price 3.05 $ (5 V 1 A power supply).

19 V 3.42 A power supply: The cheap PSU works, but has high ripple, heat, and weak protection; the author modified it for lighter loads.

5 V 1 A power supply: It performs excellently at its rated load and has the lowest ripple, but the author advises against currents above 1 A.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.