Review on Pack of 9 UCEC MB102 3.3V/5V Power Supply Module for Arduino Nano Solderless Breadboard - Enhanced SEO by Adam Gechem

6 units received on time and in good condition. The boards must be carefully separated. (a minor inconvenience considering the price) At a battery rating of 8.2V they showed an AC ripple of 1-2mV. On the 5V sections, the average voltage was just under 5V at 4.98V (no load), which dropped to about 4.87V at a 500mA load. The 3V sections were about 3.24V. The push button power switch should pull back slightly when pressed to lock in position. (not super intuitive) For simple hobby projects, that's a lot. Super comfortable! The seller emailed me to make sure the devices were received in good condition. Nice touch and definitely unexpected for an order with such a low price. The following 9V plug adapters work well: [2-Pack] 9V 1A Power Adapter for Arduino [UL/FCC Certified] AC-DC 9V 1A 1000- mAh 100-240V Converter Adapter Power Supply 5.5/2.1mm US Plug; Cable 160 cm Google UCEC MB102 pdf to find sheets and diagrams for this device. Reliable product at a great price.