Siig firewire 2 port pcie nn e20012 s2. This Siig DP FireWire 400 2-port PCI-Express Card is able to add two FireWire 400 ports on your desktop. Compatible with the PCI-Express x1 bus, this card is easy to install on most current motherboards. FireWire 400 ports support data transfer rates up to 400Gb/s. PCI Express Firewire 1394a Controller Cards are easy to use and install and allow you the fastest connectivity for your firewire devices. It provides 2 external ports on the card, allowing for easy expansion.