Comparison · Converters

USB DC-DC board, type one or Adjustable power supply kit board

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: Adjustable power supply kit board (3.35 A vs. 3.2).

Model	USB DC-DC board, type one2019Read review →	Adjustable power supply kit board2015Read review →
Voltage, V	5	30
Current, A	3	3
Test current, A	3.2	3.35
Review conclusion	Recommended	Recommended

Only in one review: Under load 9.98 V (Adjustable power supply kit board); Ripple 15 mV (Adjustable power supply kit board).

USB DC-DC board, type one: Type one handles more current, runs cooler and has less ripple; the author explicitly recommends it.

Adjustable power supply kit board: A good beginner's kit that works after assembly, though the shunt, op-amps and bridge rectifier have shortcomings.

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.