get this into your head.
you have no reason to remove your sd card when in rcm or in any matter.
do the world a favour and stop, your like a n00b who has just found youtube and then starts asking stupid irrelevant questions.
also RCM is not like a bios FFS, it is RECOVERY MODE nintendo's very own back door, hackers found it could be used to inject payloads and exploit the system.
if you want to carry on with this RCM SD shit, tell us what purpose would you want to remove your sd card.
because theirs none, so i think we are safe to say this topic should be locked and deleted, its a waste of time.