Good upgrade. I stopped doing this when I upgraded the graphics card in my Mac Pro (Mid 2010). As other reviews have noted, the tiny cable connection to the computer required care and patience. But it can be done: just use lots of light and take your time. I am happy about the improvement in reception. I can play music from my Mac through the bluetooth speaker outside of our deck, which I couldn't before installing. I lifted the external antenna onto the table and temporarily secured it with a rubber band until I decided where I needed it permanently.
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