While we have observed a high rate of success using SATA 3.0 6Gb/s drives in Apple 13' bays where 6Gb/s link is present, some systems may not operate properly with this setup. 'MacBook Pro 13' models: Apple does not support the use of 6Gb/s drives in the optical bay.If you review the OWC Data Doubler notes at the bottom you'll see this: In addition the tab I was speaking about is the right across the battery pull in your image, and if you scan up you'll find the HD mount bracket which is the location the cable gets damaged (HD not optical) and is the location point I pad the lid (not the clip).Д«ut you have another issue here which you may have missed. I did insulate the edges around the step yesterday when I installed the warranty cable - Mike, You appear not to be using the primary HD bay which was the cable we've been speaking about. I would agree that the optical drive is probably more of an issue than the battery. I do not see the metal tab that is talking about. it was actually that machine that introduced me to the world of failed SATA cables.Д®dit 2: This is what my computer looks like inside. I heard that the putting extra insulation around the cable might help.Дoes anyone have any insight as to why this cable fails, why the battery might be involved, and what can be done to prevent this from getting worse?Д®dit: The 2011 has been fixed and sold.

I did read that their might be sharp edges that are cutting the insulation on the cable. The most I could find was that Apple quietly updated the cable. I spent several hours researching and browsing the web and forums to see what this might have to do with it. I contacted iFixit and found out that somehow the battery being loose affects the integrity of the cable, yet from what I can tell, there is no way for the battery to come even close to the cable. I bought a replacement cable from iFixit and installed it. The 2011 waited about 2 years before it went and the 2012 went in just over a year. Both have had the main hard drive cable fail. I have had 2 MacBook Pro Unibody laptops, an early 2011, and currently a mid 2012 which I purchased in Sept 2015.

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