Hello guys, I am going to get my iMac 27" 5K 3.2GHz Quad Core Intel i5 with AMD R9 M390 in a week or so. Two questions about this machine: - I understood that this iMac can not support Target Mode for using as an external monitor. Is it possible to connect a MacBook/Notebook to it through Thunderbolt 2.0 and set the resolution lower then 5K? Will this work? Furthermore, will Thunderbolt 3.0 be supported on this machine in the future or the hardware just won't work with it? - I bought this iMac with 8GB RAM stock. I am planing on upgrading it to 16GB or 32GB. I am going to buy the RAM sticks from a 3rd party company. I wonder if there is any affect using RAM from different company with Apple's stock RAM? Is it okay to use it that way or should I just ditch the Apple's RAM and use only the RAM's from the 3rd party company? *the RAM sticks will of course have the same exact specification as of the Apple's RAM. Thanks!