I/O Card Replacement MacBook Air (Mid 2011)
My MacBook Air (Mid 2011) Magsafe power adapter had issues supplying power to the laptop using multiple Magsafe power cords.
Repair was easy using the iFixit guide. Only issue I had was with the fan cable. The guide could have been a little clearer on how to remove. Luckily there were some guide comments that were helpful.
If you are hesitant on opening and fixing your laptop, don't be. This was my first laptop repair and the guide/youtube video walk you through the whole process.