Which 16GB to add to what I have?

[WhiteHawk77]

Hey guys, I have a ASUS X99-A/USB 3.1 motherboard with 16 GB of Corsair Dominator CMD16GX4M4A2800C16 and want to add another 16GB (4x4GB sticks) but that RAM is no longer sold, and I am not sure what I can get, that one, is compatible with this motherboard, two, will work fine with the existing RAM and three needs to be no taller physically than the RAM I have because of clearance issues.

It doesn't have to look the same, just needs to work and be short enough.

Can anyone help me on this?

Thanks.

 

[RBImGuy]

Your better off buying the same ram.
Mixing various brands/timings/etc... is usually a very bad idea.
so buy new ram with the amount of GB you want and sell the old ram.