Reviews: I can't run ma MBA on my 30' 1920 by 1200...Simultaneously supports full native resolution on the built-in display and up to 1920 by 1200 pixels on an external display...Simultaneously supports full native resolution on the built-in display and up to 1920 by 1200 pixels on an external display, both at millions of colors...Simultaneously supports full native resolution on the built-in display and up to 1920 by 1200 pixels * on an external display, both at millions of colors...
Retrevo's Recommendation: Older product, look for current models