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Comparison · Power supplies

5 V 20 A power supply (100 W) or HCA-100

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: 5 V 20 A power supply (100 W) (24 A vs. 9); Ripple: 5 V 20 A power supply (100 W) (100 mV vs. 200); Efficiency: HCA-100 (89 % vs. 72); Temperature rise: HCA-100 (110 °C vs. 135).

Model5 V 20 A power supply (100 W)5 V 20 A power supply (100 W)2026Read review →HCA-100HCA-1002025Read review →
Current, A208.3
Power, W100100
Test current, A249
Ripple, mV100200
Efficiency, %7289
Protection, A249
Temperature rise, °C135110
Review conclusionWith reservationsRecommended

Only in one review: Voltage 5 V (5 V 20 A power supply (100 W)); Under load 4.93 V (5 V 20 A power supply (100 W)).

5 V 20 A power supply (100 W): Well assembled, but effectively a 75 W unit; the output inductor overheats at full power.

HCA-100: High efficiency, low ripple and excellent voltage stability; recommended with practical output limited to 70–80 W.

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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