1280 x 2560
1280 x 2560 = 3276800
Example of 1280 x 2560 pixels banner dimensions.
1230 x 2610 1240 x 2600 1250 x 2590 1260 x 2580 1270 x 2570
1280 x 2510 1280 x 2520 1280 x 2530 1280 x 2540 1280 x 2550
1280 x 2610 1280 x 2600 1280 x 2590 1280 x 2580 1280 x 2570