SD6PQ4M-256 655-1838-C 661-7459 256 GB Flash Storage for MacBook Air 11″ Mid 2013 MD711LL MD712LL 1.3 1.7 NB-4901W
This is a replacement 256GB solid state drive card for the Mid 2013 and Early 2014 MacBook Airs.
Apple part number: 661-7459, 655-1838-C
MacBook Air 11″ Mid 2013 MD711LL MD712LL 1.3 1.7 655-1838-C
661-7459 256 GB Flash Storage for MacBook Air 11″ Mid 2013 MD711LL MD712LL 1.3 1.7 6551838C