A:Answer The m712DA if that's still the thread comes with your M.2, and there's an open slot for a conventional 2.5 HHD. YOU NEED THIS (Photo from Asus-Accessories.com (Asus Spare Parts LL), and I'd get it from THEM. It's the best price, and quick, plus if elsewhere, it may be too short!) To keep it in place 2 sided foam tape is good or the blue rubber keeper they offer is good.