StarTech.com PCI Express to 4 Slot PCI Expansion System - PCI Express to Four Slot PCI Expansion Bay - System bus extender - Add four (PEX2PCI4)
Add an additional 4 PCI slots (32-bit/33 MHz), using PCI ExpressRugged steel constructionSupports both 5V and 3.3V & 5V add-in PCI cardsSelf-powered Expansion box with an on/off buttonNo driver...
$655.81