Silicon Power P34A60 128GB-2TB NVMe PCIe Gen3x4 M.2 2280 Internal Soli – Silicon Power Store (US)
Amazon.com: Cloudeck NVMe SSD 512GB PCIe Gen3x4 Internal Solid State Drive with 3D NAND for MacBook Air (Mid 2013-2017), MacBook Pro(Retina, Late 2013-Mid 2015), Mac Pro(2013) & Mini (2014), iMac(2013-2017) : Electronics