ASUS N550JX-TH72T optical SATA III?

AS85

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Dec 31, 2009
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Does anyone know if the optical is connected via SATA 3 for the ASUS N550JX-TH72T?
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'm thinking about buying this but only if I can install an HDD caddy that accepts SATA III.