Timetec 512GB MAC SSD NVMe PCIe Gen3x4 3D NAND TLC Read Up to 2,000MB/s Compatible with Apple MacBook Air (2013-2015, 2017), MacBook Pro (2013-2015), iMac (2013-2019), Mac Pro (2013), Mac Mini (2014) at Amazon.com
MacBook M.2 NVME Upgrade Adapter - Micro Connectors, Inc.
NVMe SSD To A1708 SSD Adapter for Apple Macbook Pro Retina 13" A1708 2016 2017 | eBay
M.2 nVME SSD Card for Upgrade MacBook Air(2013-2017) PRO(Late 2013-2015) new | eBay
Amazon.com: BestPartsCom NVMe M Key 2230/2242 SSD Adapter Compatible with Late 2016- Mid 2017 13" MacBook Pro A1708 (Non-Touch Bar Model) Upgrade Adapter Card only Work for M Key SSD : Electronics
Amazon.com: Sintech M2(NGFF) SATA SSD Card,for Upgrade 24Pin 2012 Year MacBook PRO Retina SSD (Fit M.2 SATA 2280 SSD,Not Fit M.2 nVME SSD) : Electronics