



Visual Difference
The key visual difference between the MacBook Air (Original) and the MacBook Air (Late 2008) and later is the video out port in the I/O hatch.
The original MacBook Air included a Micro-DVI connector. It has a narrow rectangular shape, as below.
The MacBook Air (Late 2008) and later includes a Mini DisplayPort. This connector is narrower than the Micro-DVI connector.

Complete MacBook Air Specs
MacBook Air "Core 2 Duo" 1.6 13" (Original) Specs (MB003LL/A)
Introduced January 15, 2009 and discontinued on October 14, 2009.
MacBook Air "Core 2 Duo" 1.6 13" (NVIDIA) Specs (MB543LL/A)
Introduced on October 14, 2009 and discontinued on June 8, 2009.
MacBook Air "Core 2 Duo" 1.86 13" (NVIDIA) Specs (MB940LL/A)
Introduced on October 14, 2009 and discontinued on June 8, 2009.
MacBook Air "Core 2 Duo" 1.86 13" (Mid-09) Specs (MC233LL/A)
Introduced on June 8, 2009.
MacBook Air "Core 2 Duo" 2.13 13" (Mid-09) Specs (MC234LL/A)
Introduced on June 8, 2009.



