Samsung PM951 Series 128GB TLC (TLC) PCI Express 3.0 x4 NVMe M.2 2280 Solid State Drive/SSDs-MZ-VLV1280
MZHPU128HCGM-00000 Samsung XP941 Series 128GB MLC PCI-Express Gen 2.0 X4 NVMe M.2 2280 SSD - Orignal Samsung Products
The 128GB Surface Pro 4 models use perhaps the worst NVMe based SSD in production (link is closest model on Samsung's site, but specs line up with benchmarks) : r/Surface