The humble yet ever-present AC/DC wall-power adapter doesn’t get a lot of consideration from consumers. It’s one of those things that’s needed but is viewed as a necessary nuisance. I suspect that ...

Meeting the Energy Star Level IV efficiency standard, the DCH3 series wall-mount ac/dc power adapters rely on mini-USB connectors for output delivery. They accept a universal 100 to 254 Vac input and ...

I recently bought a replacement laptop PC from Dell and was happy to see that its AC/DC power adapter had the same ratings as the ones I had from two now-defunct Dell laptops (19.5 V, 2.3 A/45 W).

Trade two external power supplies for one. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Lugging around an ultra high-end laptop that's ...