http://www.macnn.com/articles/07/10/03/pcie.firewire.usb.adapter/
Sonnet ships new PCIe FireWire/USB adapter
updated 09:05 am EDT, Wed October 3, 2007
PCIe FireWire/USB adapter
Accessory maker Sonnet Technologies has released a new PCI Express adapter, the Tango Express 800. The card allows Mac and PC owners to connect several FireWire and USB devices to their computer at once, and specifically plays host to three FireWire 800 and three USB 2.0 ports, the latter being divided into one internal and two external connections. Several devices can be active simultaneously, and each one is hot-swappable. Mac users have the additional ability to use FireWire's target disk mode. Macs supported by the Express include the Mac Pro, Xserve, and dual-core PowerMac G5, running Mac OS X 1.4.10; PCs must be running Windows Vista or XP SP2. The adapter is selling for $130.
Mac Elite
Joined: Dec 1999
HUH?
Looks like 2 exernal USB, 2 External FW800, and 1 internal for each. description makes it sound like 3 external FW800 and 2 external/1 internal USB.