M.2 SSD has two kinds of protocols : NVMe (PCIe) and SATA. NVMe is a new protocol which is more and more popular in the market. However, not everyone can tell the difference between both.
Be aware that NVME SSD can’t copied by SATA duplicator.
U-Reach PE Series M.2 NVMe (PCIe) / SATA Duplicator support auto-detect on NVMe and SATA protocol. Simple “Plug and Copy” without recognize protocol by users can save you a lot of time and efforts.