[HP Pavilion dv7t-7000] Check for whitelist?

Is there a way for me to check if my BIOS has a whitelist? I'm shopping for a new WiFi card and I'd like to know all my options before buying one.

I read here that HP may have stopped doing it for my machine.

I believe I'm on this most current BIOS update but I can check to be sure.

Thanks!

P.S. What's the best card I can get for my laptop? LAN transfer speeds are of the utmost importance to me.