Hi guys, I've been told to ask here before purchasing over an unlisted compatibility between the kryographics Hawaii for Radeon R9 290X and 290 acrylic glass edition and AQUACOMPUTER TWIN CONNECT 1-2 SLOT these are listed on these sites here; http://www.thekoolroom.com/product/twin-connect/ http://shop.aquacomputer.de/product_info…roducts_id=3135 Thanks Kris