How to use pci express serial card in raspberry pi compute module 4?

The 1-lane PCIe Gen 2 interface in Broadcom BCM2711 processor is exposed in Raspberry Pi CM4 I'm struggling to find clear definitions of

The Pi4 isn't PCIe Gen 4, though It's only PCIe Gen 2 Max speed of PCIe Gen 2 is 5GTs, which equates to the same speed as standard

raspberry pi pcie slot Plus, you have 11 PCIe slots, but it's going to be just a tad bandwidth restricted

raspberry pi slot machine I decided the first thing I wanted to do was make use of the PCIe slot on the board And that's where the trouble began There are LOTS of great