The highest resolution supported by the CTWU-61B is 2560 x 1600 (WQXGA). That's over thirteen times the resolution of a 640 x 480 (VGA) multimedia projector, which is the most common resolution supported by comparable spec projectors that have been on the market for more than a year. 640 x 480 (VGA) is also supported by this multimedia projector.
A 2560 x 1600 (WQXGA) supported graphics resolutions is in fact the best supported resolution across all 5300:1 contrast ratio data projectors that are a comparable age to the CTWU-61B.
The worst supported resolution amongst comparable types of data projector is 640 x 480 (VGA).