Gen4 nvme on PCIe 3 slot - ROG Forum

You're referring to NVME based M2 SSDs, correct? But yes if the SSD is PCIE spec then of course the speed will be less when used on PCIE

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

pcie slot splitter The manual and tech specs does not say the specific SSD slots, just that they are nvme m PCIe Gen 3 x4 SSDs or SATA SSDs 0 Latest articles

pcie x1 in x16 slot OCP slot with PCIe Gen 4 x16 interface ; Additional PCIe Front-accessible slots available; More PCIe connections for greater PCIeNVMe