Malcom Distributors Multi Format Black USB Memory Card Reader Writer Malcom Distributors Multi Format Black USB Memory Card Reader This Malcom Distributors 4 in 1 USB 2.0 Memory Card Reader/Writer (70721MD) is for SD/MMC/RS MMC. Compatible with SD memory cards or microSD and miniSD memory cards with a full sized SD Adapter. SD Adapter (not included) is needed for microSD and miniSD memory cards. It's compact design allows it to have the ability to be used as a mobile USB FLASH DRIVE with your memory card