node red can i use sd instead usb for extra ram/storage?
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 Hi about to go through the tutorial to increase ram and storage on USB flash drive so i can run node red on omega 2+ 
 i would like to keep the usb drive free, can i use an sd card instead
 if so is there any advantages/disavantages, is there a certain spec sd card i need to use
 there is an obvious advantage as i also brought a usb blue tooth dongle, which maybe my fault but i wanted a device to run node red so i brought this omega device to do that and i also wanted blue tooth, i didn't know at time of purchase that i need to create ram/storage on usb which i may of not purchased
 plus keeps the unit quite tidy if i was to use sd
 also if yes do i follow the same tutorial i assume soappreciate your help asking before i try as i came to soo may issues updating the omega and getting it connected to wifi, i would hate to hit an issue and come to the wrong conclusion that i can't use sd card thanksbolded text