a. The monitor requires a minimum of a USB 2.0 port connection. It will not work with older USB 1.x standard.
b. Please ensure that both connectors of the USB Y cable are connected to your laptop's USB ports so the monitor can draw enough power to activate.
c. In rare instances, your laptop's two USB ports may not have enough power output for the monitor. If this is the case, you may need to purchase an optional DC adaptor.