Based on this product's specifications, here are some alternatives and similar models
StarTech.com PCI1394MP 4-Port PCI FireWire IEEE 1394a Adapter Card with Texas Instruments Chipset
Summary description:
The StarTech.com PCI1394MP is a 4-port PCI FireWire adapter card featuring a reliable Texas Instruments TSB12LV26 chipset. It provides three external and one internal IEEE 1394a port, supporting data transfer rates up to 400 Mbps. Designed for legacy connectivity, it is compatible with a wide range of Windows, Mac, and Server operating systems, making it an ideal solution for connecting digital cameras, external drives, and audio equipment to older desktop systems.