The 4 Ports PCIE Firewire 400 1394A Expansion Card, Texas Instruments TI TSB43AB2 is a classic style interface card designed for personal computers. With a hardware interface of PCI and IEEE 1394, this expansion card is compatible with PCI Express and FireWire 400 ports. Weighing 0.24 pounds and with dimensions of 5.35x4.17x1.14 inches, this card provides additional ports for connecting various devices to your computer system. Ideal for expanding the capabilities of your computer, this expansion card allows for seamless integration of FireWire devices for enhanced functionality.