TV Bracket fixings help please (65VT30)

[GSY007]

Hi

I've got the following bracket to fix the Panasonic 65inch VT30 that I'm going to get (approx 57 kg).

Vogel EFW 8405 LCD/Plasma wall mount Superflat XL

I have a 2" x 4" ply 1/2" ply lined stud wall (400mm centres) to fix to.

If I ensure the fixings go into the upright studs (at least three) will this be adequate??

Thanks