Sure, it is perfectly possible, it just does not make much sense. You would be going back to 2018 Pi3 days. With CM4 you are better off with using pci-e which has enough bandwidth available for 2-4 gigabit ports at full speed. And if you need more pci-e devices (like wireless) you can add pci-e switch and still the solution will have better throughput than using usb 2.0.The RPi CM4 has USB 2.0, and it's perfectly possible to connect additional Ethernet.
Sorry, but you cannot use a PCIe switch with an NVMe SSD and gigabit Ethernet controllers (or other devices) on the CM4. The bootloader on the CM4 does not currently support booting an OS from an NVMe SSD when storage is connected via a PCIe switch. Officially, the bootloader does not support loading the system from an NVMe SSD through a PCIe switch. viewtopic.php?t=375595
Statistics: Posted by Ventran — Thu Dec 05, 2024 4:52 pm