Question usb sound card for logitech z906

[cmd20]

hello all,
I recently bough logitech z906, and i want to connect with my asus rog laptop. can recommend me a good usb sound card ?

 

[colin_west]

Creative Sound Blaster Omni could be a good choice. It also has an optical audio interface which you can use for the z906 speakers.
https://us.creative.com/p/sound-cards/sound-blaster-omni-surround-5-1

 

[cmd20]

Creative Sound Blaster Omni could be a good choice. It also has an optical audio interface which you can use for the z906 speakers.
https://us.creative.com/p/sound-cards/sound-blaster-omni-surround-5-1

I have this but after 2 days she is over.. and with this z906 dont show the full power