Amazon.com: M.2 NGFF SSD to 18 Pin Blade Adapter for Asus UX31 UX21 Zenbook: Electronics
So I took a gamble with this, and I'm very pleased. Like the reviewer before me, I had the SSD in my ASUS Zenbook Prime (UX31A-DH71T-CA, 256GB ADATA XM11) fail. With replacement drives in the $300-400 range, which is VERY overpriced for current SSD ......