SOFTWARE COMPATIBILITY: 
The MCP737PRO is compatible with Project Magenta. Direct interfacing with default 
FS aircraft or other software add-on is NOT supported.

HARDWARE COMPATIBILITY (CPflight modules):
EFI737PRO efis selector:           Compatible.
CPflight  radios:                  Compatible.
CPflight  MIP737 expansion board:  Compatible.
CPflight  MCPEX1 expansion board:  NOT Compatible.
EFI737NS  efis selector:           see following.

Even though the EFI737NS selector it works with the MCP737PRO, consider that 
it is dedicated to the standard low cost product line, so it have different look, 
different front plate production technology, backlighting and so on. 
The suitable EFIS selector for the MCP737PRO is the EFI737PRO version.