The flash disk on the MBP w/ Retina and MBA is not soldered in. It's a little gumstick module held in with one Torx 5 screw. (The RAM is soldered to the logic

The flash disk on the MBP w/ Retina and MBA is not soldered in. It's a little gumstick module held in with one Torx 5 screw. (The RAM is soldered to the logic board.) They have changed the connector each for rev, though, so I wouldn't plan on upgrading it.