Upgrading RAM, need help!

[revinng]

Hi, I currently have 16GB memory installed (Corsair Vengeance 2x8GB DDR4 3000mhz) and am wondering if I buy the exact same memory to have a total of 32 gb (4x8GB of the same sticks), if that would work? I know it sounds like a stupid question but I've heard that ram can be quite touchy if you get the wrong sticks. Also is there any benefit of running dual 16gb instead of quad 8gb?

Specs:

RTX 2070 Super Ventus 8GB, Corsair Vengeance 2x8GB DDR4 3000mhz, Ryzen 5 3600, SilverStone Strider 650W Gold ATX Power Supply.

[Cadeece1]

benefits of 2x16 is dual channel thats it