The highest resolution supported by the NP-PA521U is 1920 x 1200 (WUXGA). That's over seven times the resolution of a 640 x 480 (VGA) projector, which is the most common resolution supported by data projectors of a similar age and type to the NP-PA521U. 640 x 480 (VGA) is also supported by this multimedia projector. In addition, this projector support supported graphics resolutionss of 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1400 x 1050 (SXGA+) and 1600 x 1200 (UXGA) and 800 x 600 (SVGA).
A 1920 x 1200 (WUXGA) supported graphics resolutions is in fact the best supported resolution across all comparable spec multimedia projectors that are a similar age to the NP-PA521U.
Across similar types of data projector the worst supported resolution is 640 x 480 (VGA).