The HP 174930-001 is a front I/O expansion board for Presario EZ Series desktop systems, providing dual-interface connectivity through IEEE 1394a FireWire and USB 2.0 ports. This internal header-mounted module connects to the system motherboard via standard internal USB and FireWire headers, adding external port access without requiring PCIe slot utilization. The board supports hot-swap device connectivity typical of FireWire and USB interfaces, making it suitable for systems requiring legacy FireWire support or expanded USB capacity for peripherals like external drives, cameras, and multimedia devices. Compatible exclusively with HP Presario EZ Series chassis that feature the appropriate internal header connections. This refurbished component has been tested and guaranteed to meet OEM specifications; availability via quote.