Q: Can Fitlet2 work with more than one storage device?
Fitlet2 has a single SATA interface and supports a single SATA device.
Extra storage devices can be connected through USB / micro-SD.
Q: Do FACET Cards affect the storage I can use with Fitlet2
Standard fitlet2 can take M.2 M-key 2260 / 2242 SATA SSDs.
Some FACETs (like FC-LAN, FC-USB) do not interfere with the SSD.
Some FACETs (like FC-CEL, FC-PCIe) will use the allow installing M.2 M-key 2280 SATA SSDs.