A device that connects directly to a laptop and provides a one-to-one duplication of the laptop’s existing ports is known as a port replicator. According to CompTIA Core 1 (220-1201) mobile device and laptop accessories objectives, a port replicator extends the available connections by mirroring the laptop’s built-in ports, such as USB, HDMI, Ethernet, and audio. This allows users to quickly connect peripherals like monitors, keyboards, mice, and network cables without plugging each device in individually.
Port replicators are typically passive devices and do not add new functionality beyond duplicating existing ports. They are commonly used in office environments where users frequently dock and undock laptops.
A docking station, by contrast, often provides additional or enhanced functionality, such as extra video outputs, higher-power charging, expansion slots, or proprietary connectors. A USB hub only expands USB connectivity and does not replicate all peripheral connections. A KVM switch is used to control multiple computers with a single keyboard, video display, and mouse, which is unrelated to laptop port expansion.
CompTIA distinguishes port replicators as simple port-duplication devices, making them the correct answer in this scenario.
[References:CompTIA A+ Core 1 (220-1201) Official Study Guide – Mobile Device Accessories and Laptop Hardware, , , ]
