A device containing standard computer ports used to avoid constantly connecting and disconnecting peripherals from a portable computer.
A port replicator duplicates all your computer's ports and may even add a Small Computer System Interface (SCSI) port or a second Universal Serial Bus port. The external monitor, full-sized keyboard, and mouse you use in the office are connected to the port replicator; when it is time to take the portable computer on the road, you simply unplug the port replicator, leaving everything attached to the replicator for your return.
See also docking station.