With each new generation of desktop computers, the industry is moving away from shared bus topologies. To accomondate for this change we are now offering a PCIe to PCI Bridge with 4 PCI slots.
This box is based on the StarTech PCIeX2PCI4 which gets rebuilt into a larger housing with improved cooling. Specifications can be found on the StarTech homepage. https://www.startech.com/en-us/cards-adapters/pex2pci4