Question Upgrading my RAM to 64GB ?

My PC is always maxing out my 32GB ram so I'm planning to add another 32GB but the problem is I can't find RAM which has the same model as my current RAM. https://www.gskill.com/product/165/167/1536718734/F4-3200C16D-32GTZRX. Can I just add this model instead https://www.gskill.com/product/165/184/1536110922/F4-3200C16D-32GVK? They have the same speed, latency and voltage.
Don't add, change to full 64GB set. That is specially important when using all 4 slots as that puts more load on memory controller and may become unstable at higher speeds.Best results with 2x32GB.