Versions

All PCI-X cards or slots accept a 64-bit accomplishing and alter as follows:

Cards

66 MHz (added in Rev. 1.0)1

100 MHz (implemented by a 133 MHz adapter on some servers)4

133 MHz (added in Rev. 1.0)1

266 MHz (added in Rev. 2.0)1

533 MHz (added in Rev. 2.0)1

Slots

66 MHz (can be begin on earlier servers)

133 MHz (most accepted on avant-garde servers)

266 MHz (rare, getting replaced by PCI-e)

533 MHz (rare, getting replaced by PCI-e)