@K3Nv3, If I'm transferring stuff to my 3DS, I go with the old fashioned SD card adapter method. OG Xbox on the other hand, often use FTP with a CAT5 ethernet cable hooked up to my PC.
@SylverReZ thing is, 2 cables i got coming to the couch are male C, and I didn't want to get UP to go plug that thing into the SD adapter and reader. LMAO. Need to get me C fem to C fem de-coupler or 3
@Elfish, You do not need to decrypt/encrypt 3DS ROMs, this isn't the Gateway 3DS era of the scene. If your console has Luma3DS, you can convert 3DS ROMs regardless of format to CIA using GodMode9 and install it that way.