840 x 3540
840 x 3540 = 2973600
Example of 840 x 3540 pixels banner dimensions.
790 x 3590 800 x 3580 810 x 3570 820 x 3560 830 x 3550
840 x 3490 840 x 3500 840 x 3510 840 x 3520 840 x 3530
840 x 3590 840 x 3580 840 x 3570 840 x 3560 840 x 3550