Palm Universal Connector
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The Universal Connector was a standard port fitted to the bottom of many Palm PDA's from 2001 to 2004.
Out of the box, it is used to connect to the sync and charge cradle, allowing the Palm to connect to a desktop PC and receive battery power. A range of accessories were also available for the Universal Connector, including folding keyboards, external battery packs, wired and wireless modems, and many more.
The Universal Connector cradles were the first synchronization device that used USB to communicate the host computer, in favor of the older serial port standard.
It has now been abandoned in favour of a newer standard, the Palm Multi-Connector.