The Compaq 2-Port FireWire PCMCIA CardBus is a hot swappable plug and play device designed for computers. It features two ports, one FireWire 400, and is compatible with PCMCIA Type II ports. This non-RAID controller card allows users to easily expand their computer's capabilities with external interfaces such as CardBus and FireWire cards. The compact CardBus form factor makes it ideal for port expansion in laptops and other portable devices. The Compaq brand ensures reliability and quality in this essential computer component.