Looks like forum member dickerpatti2 is back with yet another hardware mod for the sd card slot.This time no bulky add ons all hidden withing the battery compartment's great work dude pics below.
Buy from ebay (16cm Raspberry Pi http://r.ebay.com/8bnUzt )
Source https://boards.dingoonity.org/ingenic-jz4760-devices/revo-k101-shell-used-in-another-device/825/