I saw a few listings with the best prices in Australia:
http://www.ebay.com/itm/Samsung-SM9...m-SSD-OEM-MZHPV128HDGM-00000-/261830520051and Samsung SM951 512GB M 2 PCIe 3 0 x4 80mm SSD MZHPV512HDGL 00000 | eBay
Also UK postings:
Samsung SM951 128GB M.2 NGFF PCIe Solid state drive SSD (2280) ( MZHPV128HDGM-00 and PQ1104 Samsung SM951 128GB M 2 SSD MZHPV128HDGM | eBay
It sounds like lots of NVMe is coming but these are fast now.
http://www.ebay.com/itm/Samsung-SM9...m-SSD-OEM-MZHPV128HDGM-00000-/261830520051and Samsung SM951 512GB M 2 PCIe 3 0 x4 80mm SSD MZHPV512HDGL 00000 | eBay
Also UK postings:
Samsung SM951 128GB M.2 NGFF PCIe Solid state drive SSD (2280) ( MZHPV128HDGM-00 and PQ1104 Samsung SM951 128GB M 2 SSD MZHPV128HDGM | eBay
It sounds like lots of NVMe is coming but these are fast now.