Sticks with Hyper IC's (MNH-E and MGH-E) are EOL and no longer produced. I purchased mine both new and used. Nothing else will do DDR3-1700+ 6-6-6-18 or DDR3-2000+ 7-7-7-20, all the new ram is crappy timings and crappy IC's and SB seems to love it. My kits will do DDR3-2000 7-7-7-20 at ~1.65 - 1.70v so it's not really special, some are better than others though, and your IMC must be good to handle them.