Lenovo USB 2.0 Port Replicator with Digital Video: * Supports 24 different video resolutions up to 2048 x 1152 * Mirrors or extends laptop display to second monitor * Compact and sleek mini-tower design * Hot pluggable * Ports: 4 x USB 2.0 ports, 1 x 10/100M Ethernet, 1 x headphone, 1 x microphone * Cable lock slot * Backward compatible with USB 1.1