850 x 3980
850 x 3980 = 3383000
Example of 850 x 3980 pixels banner dimensions.
800 x 4030 810 x 4020 820 x 4010 830 x 4000 840 x 3990
850 x 3930 850 x 3940 850 x 3950 850 x 3960 850 x 3970
850 x 4030 850 x 4020 850 x 4010 850 x 4000 850 x 3990