I've searched the forums and googled for results but I can't seem to find the answer. All that I've read states that an adaptor/bracket is required for the iMac 2010 27" model. OWC lists available kits but they all seem to be for the 21.5" 2011 model or the 27" 2010/2011 models. All I want to do is replace the existing HDD with an SSD in my 2010 21.5" model. Can anyone clarify this for me.