USB 2.0 is a data port connection that provides faster file transfers than the older USB 1.1. However, at times some electronic devices (such as video cameras) require a firewire 400 connection. This port looks similar to a USB port, except it has a curved side and a trident icon printed next to it. If your computer does not currently have a firewire 400 connection port you may convert one of the current USB 2.0 devices to the firewire connection.
Insert the firewire 400 to USB 2.0 adaptor into one of the USB ports on your computer.
Connect the firewire 400 cable into the open firewire 400 port on the adaptor.
Plug the opposite end of the firewire cable into the electronic device you are hooking up to the computer.
Power on the electronic device and, momentarily, the computer states it has detected a new camera or hardware device.