Hi, I have a Macbook Pro 13" Early 2011 with a Samsung 830 SSD boot drive on the main hard drive slot(6 gigabit link speed, 6 gigabit negotiated link speed - Sata III) I have an OWC SSD 115gb on a Data Doubler that replaced the DVD player. It had 6 gigabit link speed and 3 gigabit/s negotiated link speed (Sata II) I want to buy a Samsung 840 750 gb EVO to be used as the data drive for final cut pro X. Will the Samsung 840 be too fast for the 3 gigabit/ps Data Doubler slot? Should I put it in the 6gigabit-6gigabit slot to maximize data thoroughput? I want to keep the Samsung on the primary slot if the 3gbps slot can handle the maximum amount of data the 840 is pumping out. Please let me know. Thanks.