Comparison · Converters

ZC822 or RBQ-31251

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: Price: RBQ-31251 (2.81 $ vs. 5.45).

Model	ZC822YZXstudio · 2019Read review →	RBQ-31251Murata · 2018Read review →
Voltage, V	12	9.7
Current, A	2.5	40
Price, $	5.45	2.81
Review conclusion	With reservations	Recommended

Only in one review: Power 27 W (ZC822); Test current 3.8 A (ZC822); Under load 12 V (ZC822); Ripple 250 mV (ZC822); Protection 2.4 A (ZC822); Temperature rise 60 °C (ZC822).

ZC822: An inexpensive board with broad protocol support, but output power is limited to 27 W.

RBQ-31251: A genuine converter with a heatsink; the author estimates it can deliver 20–25 A without additional cooling.

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.