The product, VME64x bus specification or ANSI/VITA 1.1-1997, is an extension of the VME64 standard ANSIVITA 1-1994. It defines a set of features that can be added to the VME and the VME64 boards, backpanes and sub-racks. There are major new features on this product for a more faster output which include expanded 160-pin P1/J1 and P2/J2 connectors, an optional 95-pin (2 mm hard metric P0/J0 connector) for more user-defined I/O, +3.3V and auxiliary power voltage, plus more +5V power. The VME64x system is downward-compatible, so that it assemblies with 96-pin connectors to DIN 41612 that can still be used.