I hear that some macs and some adapters dont work well together. I am in need of a cord or adapter to plug into my thunderbolt and connect to my samsung monitor through hdmi. It would be nice to have just a cord and skip the adapter. I checked and my mac lists hdmi/display port audio output. I have a macbook pro 13" 2.3ghz early 2011. I would really like to hear from other owners which adapters worked well for them.