I recently failed to resist buying a compact power module from eBay for almost nothing! As usual, thereafter I leaped into the inside electronics of the module, and really amazed by the hidden magic ...

Power supplies are a frequently misunderstood—and overlooked—PC component. Many users choose a PC power supply based on total wattage alone, assuming that higher is always synonymous with better.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Sarah Witman Sarah Witman is a writer focused on batteries and charging ...