MTP USB devices include any portable USB drive configured with the Media Transfer Protocol, or MTP. These include flash drives and memory cards found on older computers, cellphones, MP3 players and video players. This was a popular protocol several years ago, primarily on Microsoft Windows XP computers. While it was an improvement on the Picture Transfer Protocol, or PTP, it has since been overshadowed by the Mass Storage Protocols used by most USB storage devices today. Writer Bio
