I've got the laptop in the link below. It looks like it currently has a SATA II HDD but I would like to know is if it can support SATA III. The Chipset appears to be AMD Radeon™ HD6490M.
http://www.samsung.com/us/support/owners/product/NP700Z3A-S03US
http://www.samsung.com/us/support/owners/product/NP700Z3A-S03US