Comparison · Power supplies

5 V 40 A power supply (200 W), active cooling or Track power supply, 48 V, 200 W

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: Ripple: 5 V 40 A power supply (200 W), active cooling (70 mV vs. 1200); Efficiency: Track power supply, 48 V, 200 W (91 % vs. 77.5).

Model	5 V 40 A power supply (200 W), active cooling2026Read review →	Track power supply, 48 V, 200 W2026Read review →
Power, W	200	200
Ripple, mV	70	1200
Efficiency, %	77.5	91
Protection, A	50	4.6
Review conclusion	Recommended	With reservations

Only in one review: Voltage 5 V (5 V 40 A power supply (200 W), active cooling); Current 40 A (5 V 40 A power supply (200 W), active cooling); In test 208 W (Track power supply, 48 V, 200 W); Test current 50 A (5 V 40 A power supply (200 W), active cooling); Under load 4.98 V (5 V 40 A power supply (200 W), active cooling); No load 0.6 W (Track power supply, 48 V, 200 W); Temperature rise 87 °C (Track power supply, 48 V, 200 W).

5 V 40 A power supply (200 W), active cooling: Handles 200 W with low ripple and reasonable temperatures, but comes with a cheap fan.

Track power supply, 48 V, 200 W: Delivers about 208 W and performs well, but has notable 100 Hz ripple and a 50 V output capacitor.

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.