Ram compatibility 2x4 plus 2x4

[kd35]

Hey!
At the moment I have 2x4gb Kingston Hyper X fury DDR4 2133MHz and I'm thinking about adding another 2x4gb kit of the exact same Ram. Does doing that cause me any problems or possible malfunctions?
Thanks!
And my mobo is msi b150 bazooka

 

[Eximo]

It will likely work, but there is no guarantee when mixing memory. They are sold as tested sets.