I needed a stable firewire card to handle all my home recording through a Presonus Firebox and Edirol FA101. Using a Sony Vaio VGN-FW270J, the built-in firewire was unreliable, losing connectivity during recording and playback without notice. Beyond frustrating! For around $50, the StarTech firewire expresscard works incredibly well without any kind of installation or setup required. All the drivers loaded automatically (using Vista Ultimate) and with the hotswap feature, I can install and remove the card at will. As far as performance with my firewire devices (especially soundcards), I have yet to notice any additional lag or latency whatsoever. By far this has been the best (and cheapest) alternative to actually replacing the board, without compromising any performance. Highly recommended!