So far - so good! I purchased this to supply on-the-go charging to my new MacBook 12".
The cord seems to made of quality materials and has what appears to be decently protected ends for many successful connections.
It worked on first attempt... plugged into a 10K mAh external battery that I use for charging iPads and iPhones. Using a 2.1A capable battery will give you a positive charge while using your laptop.
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