19 V 3.42 A power supply or 5 V 2 A power supply

In brief: Based on review measurements: Test current: 19 V 3.42 A power supply (5.4 A vs. 2.5); Ripple: 5 V 2 A power supply (100 mV vs. 300).

Model	19 V 3.42 A power supply2022Read review →	5 V 2 A power supply2015Read review →
Test current, A	5.4	2.5
Ripple, mV	300	100
Review conclusion	With reservations	With reservations

Only in one review: Voltage 5 V (5 V 2 A power supply); Power 10 W (5 V 2 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 4.17 $ (5 V 2 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 2 A power supply: Voltage stability is good and ripple is acceptable, but the output inductor is weak and it whines under light load.

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.

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