Data transmission letters

• PC connection type
• PC port, for short
• Very active port?
• Port designation
• Type of laptop-to-printer connection
• IMac-to-iPhone connection standard
• Plug-and-play PC port
• Computer port found in the four longest answers

Wikipedia Word definitions in Wikipedia
USB , short for Universal Serial Bus , is an industry standard developed in the mid-1990s that defines the cables, connectors and communications protocols used in a bus for connection, communication, and power supply between computers and electronic devices. ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
initialism (acronym) for universal serial bus , by 1994.