PCIOX4 is an alternative wearout extender similar to the PCISX4. However, the connector on top of the extender is offset by 1.1 inches, into the chassis. It allows PCI short cards with I/O connectors to use the extender without having to modify the chassis. It can also be used directly on the motherboard slots, with an optional L-shaped bracket. Add -3 for VIO=3.3V version, -5 for VIO=5V version (default). The dimension is 6.9"L X 1.5"H.