I'm selling my 2011 Macbook Air 13'' for $400 OBO

Bought from Stanford Bookstore in 2012. I've recently upgraded to a new Mac and am selling my old one.

Pros:

• replaced original 128GB SSD with a new 256GB SSD that is not only twice as big as the original, but also twice as fast
• recently installed a fresh battery
• works well

Cons:

• "L" key works only intermittently. Other keys work fine.
  Possible workarounds: fix it if you can; use software to repurpose the semicolon key as an "L" key (this is what I do); use external keyboard; don't use words containing "L"s.