I picked mine up from Hong Kong, (from the official retailer of R4), and I got the key ring (left) + card reader on the right.
seems they got a couple variations out there
I am trying to hack Fire Emblem Warriors on my 2DS XL, I have been trying to get it to work, but I need some extra help figuring it out. I have HEX codes, and a possibly outdated plugin, but I dont know how to implement them