Road warriors who carry a MacBook may already have Apple's world travel adapter kit, or even Twelve South's PlugBug for that extra USB port; but both products require swapping plugs for different regions. Konnext's OneAdapter Twist, however, caters to the slightly lazier travelers: It's essentially a chunky all-in-one travel adapter that sits atop any MacBook charger, though it also works just fine by itself. To switch plugs, simply twist the ring in the middle until it clicks. There's also a 2.4A USB socket (PlugBug's is only 2.1A), and if you need more, you can slot an optional three-socket USB hub in between. The OneAdapter Twist won't be launching until June for around $29 to $39, but for now, we have a quick demo video of a prototype after the break.
Apple MacBook Pro 15-inch with Retina Display (mid 2014)