Convert PCIe x1 slot to open ended Is there a safe way to cut the

slots in both motherboards is PCIe x1 I had installed an aftermarket card into the PCIe x1 of the 2019 Envy to add rear USB-3 and USB-C ports In the 2019

The 3rd Gen PCIe x1 slots have 1Gbps of data transfer speed and can handle multiple SATA expansion with SATA SSD or SATA

pcie x 16 slot List of Motherboards with 3 PCI-Express x1 Slots: MSI PRO Z790-S WiFi, ASRock Z790 PG LIGHTNING, ASRock Z790 PG LightningD4, MSI PRO B660-A DDR4,

pcie 4 nvme in pcie 3 slot The specs state that the PCIEX4 and PCI Express x1 slots conform to PCI Express standard In which PCIe slot did you drop the to PCIe x4