No real thing or specific 'DUAL Channel' DRAM, DDR# DRAM is DRAM, can take any sticks if they will play nice together and run them (in the proper number) in single, dual, tri or quad channel mode - the different channel modes are determined by the MC (memory controller) and it's capabilities - and as mentioned above 2x8GB is preferable to 4x4GB , less stress and can have ever so slightly better performance (not that you'll 'see', but will be there 😉