USB/firewire Expresscard 34 2FIREWIRE+1 USB Ports Bus Interface: ExpressCard/34, to add more full-bandwidth USB 2.0 and FireWire 400 ports to any compatible computer Provides fast interface to download videos from your digital camcorder, transfers files to external drives, and more Form Factor: ExpressCard/34 computer card, Supports hot-swappable device connection. Plug in and disconnect peripherals without shutting off your computer Supports simultaneous low-, full-, and hi-speed device connections Plug and playno drivers to install