I/O Crest SI-PEX60016 1 to 2 Port PCIe Switch
|CM4 Functionality||Pi 5 Functionality||Driver Required?||More Info|
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Description and Notes
This card requires external power (and includes a molex to floppy power adapter), but works great on both the Raspberry Pi CM4 and Pi 5 model B.
Note that certain devices can behave strange when run behind a PCI Express switch / bridge. Notably, NVMe drives cannot be used as boot drives on the Compute Module 4 behind a switch (and it remains to be determined if they will work on the Raspberry Pi 5 behind a switch).