I saw on NewEgg that they have Quad Channel RAM. But there's no equivalent catergory filter for motherboards. I also checked some the hight priced mobos and the ones I found said they support dual channel RAM.
Where do you find a mobo that supports quad channel RAM? And what CPU would take advantage of thos? Core i7?
More aboutwhere quad channel motherboard
You need a time machine to take you to November 2011 when the LGA 2011 and Sandy Bridge SB-E are first released. Otherwise you'll need to break into ASUS, Gigabyte, MSI, etc and rip-off their testing rigs.