Maybe Team R4 sold the R4 line to someone else that enhanced it to work with microSDHC cards. There seems to be a few retailers selling different version of the R4 III. Also, with Nintendo suing all of these small companies, I wouldn't doubt it if Team R4 sold off all of their (unreleased) R4 III inventory to whomever would buy it... and now the companies that purchased the inventory is selling them under a few different brands of the R4 III. Just a thought...