PW2 Has a way to do KPW2 read SD card?

I bought the Kindle firstly to read manga and then books, so i opted for a good quality screen and with a good touch.
My problem is on the 4GB space, to just read books is ok but for manga its very low space.

Surfing on internet i noticed some interesting things...
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So, there is some technique to add support for micro SD on Kindle Peperwhite 2?
I'm a noob with solder.

Firmware 5.6.5
No jailbreak.



Tryed to find any post saying about this but failed :(