Compact PCI Systems Modules come with integrated Bus board, Integrated power supply unit which are wired and tested and with a option of addition of active cooling. 

There are four versions available of this Subrack:

•  COMPACTPCI-3 U-Rear I/OI
• COMPACTPCI-6 U-Rear I/OI
•  COMPACTPCI-4 U-Rear I/OI
•  COMPACTPCI-6 +3U-Rear I/OI

Click here to see more about Compact PCI System Modules