COMPRO U500 .vs. COMPRO U300.
都是用 DIB7700.
U500用 B 版(7700B-BBXXa-G), U300用 C版 (7700C1) ?

COMPRO U500 (7700B-BBXXa-G) :
http://www.ixbt.com/monitor/compro-u500.shtml
http://www.ixbt.com/monitor/images/...-u500/chips.jpg