I got response from eshop.sintech.cn who sell NGFF M.2 PCIe adapter:
We tested this system, macbook can't detect M.2 nVME SSD after I erased it as exFAT format. But WIN 10 on Macbook can detect M.2 nVME SSD.
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So i think it's only software problem.. Samsung 960 PCIE SSD will work if you install Windows 10 or Linux but MacOS maybe in future.