A Question For Those With A SiiG 2-Port Firewire Express Card?

Hi, So I have been using this audio interface, Presonus Firebox, for sometime on my desktop (powers by its 6 pin to 6 pin firewire connection) but now I’m using a laptop without a 6 pin port…I’m thinking of buying this SiiG 2-Port Firewire Express Card:

http://www.provantage.com/siig-nn-ec2012-s1~7SIFW00U.htm

But I want to know if the card itself is automatically powered once in the laptop or if I am going to have to power it some other way….

Will I be able to just put it in, plug my firebox into it, and it will work?

I have a HP Pavillion dv9000 if that helps

Thanks!