I'm assuming that I could replace all 4 ram slots with 4x8gb chips above?? Would this work?

iMac (21.5-inch, Mid 2011) 2.5 GHz Intel Core i5

current ram 12 GB 1333 MHz DDR3

I want to replace 2 current chips if not all 4 with this PC3-10600 8 GB RAM Chip

Is there a preferred SSD brand that works best for this? Can you install 2 SSD drives for maximum speed and capacity?