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
PC SSD | SSD | Samsung Semiconductor
MZ-VLV1280 Samsung PM951 Series 128GB TLC PCI Express 3.0 x4 NVMe M.2 2280 Internal Solid State Drive (SSD)
Samsung Mz-vlw1280 128gb NVMe M.2 PCIe SSD for sale online | eBay
ET Deals: Samsung Galaxy S20+ 5G 128GB Unlocked Smartphone for $812, Samsung 970 Evo 1TB SSD for $129 - ExtremeTech