320 x 12800
320 x 12800 = 4096000
Example of 320 x 12800 pixels banner dimensions.
270 x 12850 280 x 12840 290 x 12830 300 x 12820 310 x 12810
320 x 12750 320 x 12760 320 x 12770 320 x 12780 320 x 12790
320 x 12850 320 x 12840 320 x 12830 320 x 12820 320 x 12810