The card is compatible with laptops that have a Cardbus slot. Cardbus was a high-speed expansion slot that was introduced in the late 1990s and was superseded by PCI Express in the mid-2000s.

The HP 4-Port Combo USB 2.0 Firewire Cardbus is a relatively rare card, but it can still be found for sale online. It is a good option for people who need to add USB 2.0 and Firewire ports to a vintage laptop. However, it is important to note that the card will not work with modern laptops that do not have Cardbus slots.