Delete comment from: Ken Shirriff's blog
Interesting that the HP touchpad charger won - it's the charger we can't stand to have in the bedroom. When not under load, ours gives off a high-pitched (like 10khz) whine that drives us crazy.
Oct 29, 2012, 6:00:27 PM
Posted to A dozen USB chargers in the lab: Apple is very good, but not quite the best