does the 1x SSD Combo (NVMe PCIe Gen3 x4 SATA

First we need to identify at which PCIe slot the device is attached $ lspci grep -i nvme 08: Non-Volatile memory controller: Samsung

NVMe Drives can use 4 PCIe lanes, which means a theoretical maximum speed of Gbps Irrespective of the form factor, NVMe

nvme slot vs m2 2 PCIe NVMe drives are 'M' keyed SATA ones, however, are 'B+M'

nvme pcie 40 in 30 slot If you're someone in need of a clever PCIe x16 adapter to add more quick storage into your system easily, this PCIe x16 Enclosure