Downldoad free driver updates for Ricoh SD/MMC Host Controller also known as : Ricoh MMC Host Controller for Windows 7 64 bit. Ricoh SD/MMC Host Controller overview Windows 7 x64, , by Ricoh Company and is used by users of Software Informer. I am able to install this, and get an updated driver off windows update. . nothing , but a search in Google shows it as a "Ricoh SD Host Controller". . 5-in-1 Card Reader" support and compatibility with MMC/SD/XD cards.