820-2796-A 661-5738 Logic Board 1.4 GHz for 11-inch A1370 MacBook Air Late 2010, 820-2796-A NB-1358W
This is the 1.4Ghz Logic Board for the MacBook Air.
Apple part number: 661-5738, 820-2796-A
661-5738 Logic Board 1.4 GHz for 11-inch A1370 MacBook Air Late 2010 8202796A