Method, apparatus, and computer program products for dynamically allocating lanes to a plurality of PCI Express connectors are disclosed that include identifying whether a PCI Express device is installed into each PCI Express connector, and assigning a portion of the lanes to each PCI Express connector having a PCI Express device installed into the PCI Express connector. Dynamically allocating lanes to a plurality of PCI Express connectors may also include identifying a device type for each PCI Express device installed into the plurality of PCI Express connectors. Dynamically allocating lanes to a plurality of PCI Express connectors may also include creating allocation rules that specify the allocation of lanes to the plurality of PCI Express connectors. Dynamically allocating lanes to a plurality of PCI Express connectors may also include receiving user allocation preferences that specify the allocation of lanes to the plurality of PCI Express connectors.