cPCI Express Card Size

cPCIe Board Dimensions

Nothing about the size of the board changes between cPCI and cPCIe.
The only real change is the electrical interface, changing from PCI to PCIe.
So the board dimensions shown below for CompactPCI Express match those used by CompactPCI.
However the style and number of I/O connectors used for I/O does change.
For example 5 connectors are used on a 6u cPCI board, while 7 connectors are used on a cPCIe board.

cPCIe Card Size dimensions
CompactPCI Express [cPCIe] Board Dimensions

cPCI Express Connectors:

cPCI Express [6U] uses 2mm 'Hard Metric'; IEC 1076-4-101, a number of different pin arrangements. Normally the outside Ground rows (which are compression pins) 'Z' and 'F' are not counted as pins. OEM pin numbering may be by cPCI or in accordance with IEC 61076-4-101 (which is reversed). The term "Hard Metric" only means that metric dimensions are preferred ~ with-out regard to inches. Connector manufacturers [vendors] are listed on the main CompactPCI Express [cPCIe] page.

The types below are counting signal pins (not the ground rows), as indicated on many data sheets:

Type A; 110 pins, Keyed (J1/J4),([25 rows x 5 columns] - [3 rows x 5 columns of Key])
Type B; 110 pins (J2/J5), [22 x 5]
Type B; 95 pins (J3), [19 x 5]. This is also used as P0 with VME64
Type C; 55 pins [11 x 5]
Type AB; 95, 110, or 125 pins

There are other connector types:
Type L; # contact cavities to accept power insert contacts
Type M; # contact cavities to accept power insert contacts/with half the connector having normal pins

cPCIe Board Dimension showing connector Types
CompactPCI express [cPCIe] Board Dimensions, Connector locations

cPCI and PXI use the same form factor [card size]. cPCI and PXI use the electrical bus standard of PCI [with a few changes].
The cPCIe board standard uses the PCI express interface standard.
Back to the main CompactPCI Express [cPCIe], CompactPCI [cPCI], PXI, or PCI Bus page.

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Modified 6/13/15
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