Speed (Class) of pre-installed 16Gig MicroSD card?

[DessoThumbs]

The reason I'm asking is I tried a Class 2 in my Tab and HD movies stuttered somewhat. I got a deal on a 16Gig class 10 and it's way faster moving stuff to/from DLNA and movies play flawlessly. My Bionic is due to arrive Monday.

As always, TIA.

 

[Speeding Wheels]

Class 4 pre-installed

 

[DessoThumbs]

Thanks!