When Apple launched the new MacBook Pro, it was rightly hounded for choosing to only give the power laptop USB-C ports. It’s a trade-off: each USB-C port can do much more than any other port, as it can carry data, video and power through one cable, but you’re going to need a bunch of dongles to make your MacBook work with other devices.

Sure, companies have already launched all-in-one docking stations for the new MacBook Pro, but having to carry around a docking station that gives you the same functionality as a laptop from 2011 is a little annoying.

But put all those ports into a device that’s also a cooling pad and a large external battery? Now we’re talking.

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The Line Dock is an Indiegogo campaign for an all-in-one accessory for the MacBook Pro. It combines a 20,000mAh external battery, external SSD, cooling pad and USB-C hub into one relatively thin design. If this thing ever gets built, it will be the ultimate laptop accessory.

Sure, the form factor looks a little weird for an external battery, but it’s specifically designed to fit underneath your laptop when you’re working. I’d also argue that if you’re already carrying around a laptop in a padded laptop bag, this battery will be less bulky to carry than a big, traditional, brick-sized external unit.

The base dock with no extra storage is $150, which is right on the lower end for USB-C docks, let alone giant laptop batteries. That price can go way up, though, all the way to $600 for the version with a 1TB SSD.

Of course, there’s always concerns when you’re buying into a crowdfunding campaign, especially one promising so much for so little. But the timeline — shipping by June next year — certainly isn’t ambitious, and for $150, it could be well worth a pop.

Chris Mills has loved tinkering with technology ever since he worked out how to defeat the parental controls on his parents' internet. He's blogged his way through Apple events and SpaceX launches ever since, and still keeps a bizarre fondness for the Palm Pre.