One of the main new features of the 12-inch Retina MacBook is its USB Type-C port that can both charge the battery and let you connect other devices at the same time, but only as long as you have an adapter. And now a new accessory from the makers of the Magnetic Organization System (MOS) is promising to be the USB Type-C-friendly external battery that your MacBook deserves.

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While many existing accessories can recharge the Retina MacBook via USB-C, the just-announced Reach Go is the “world’s first power bank that can charge a laptop battery at full speed.

The Reach Go retails for $99 and offers 15,000 mAh of extra power that can be used to recharge both USB-C and USB 3.0 devices. Additionally, the accessory can also be used as a USB 3.0 hub, the company says.

However, you can’t order the accessory just yet from the company’s website. Instead, you can only register for purchase-related updates for the time being. Check out the device for yourself here.