I can't tell what is different between the two though other than the model below? Also I thought the 6th gen processors were in them, these show 5th gen?
mk142ll/a vs mk442ll/a
http://www.bestbuy.com/site/apple-2...1tb-hard-drive-silver/3093014.p?skuId=3093014
http://www.bestbuy.com/site/apple-2...1tb-hard-drive-silver/3094013.p?skuId=3094013
mk142ll/a vs mk442ll/a
http://www.bestbuy.com/site/apple-2...1tb-hard-drive-silver/3093014.p?skuId=3093014
http://www.bestbuy.com/site/apple-2...1tb-hard-drive-silver/3094013.p?skuId=3094013