Step-down DC-DC MOD-04871 enclosure

This is compact enclosure of a module with a step-down drive LM2596 (reference: MOD-04871). Input voltage from 3.2 V to 40 V. Maximum continuous output current 3 A. Output voltage adjustable in the range of 3.2 V to 35 V. Built-in display shows the current input or output voltage.

Such a thing as here eg.
https://www.amazon.com/LM2596s-Converter-Step-down-Regulator-Stabilizer/dp/B07CVBG8CT/ref=sr_1_15?crid=2T9VHL1D4ARHY&keywords=step-down+module&qid=1575801574&sprefix=step-down%2Caps%2C247&sr=8-15
or
https://botland.com.pl/en/step-down-converters/4871-step-down-voltage-regulator-with-display-lm2596-32v-35v-3a.html