<b>More specific models or systems, please contact customer service.</b><br><br><b>NOTE:</b><br/> 1.Some advanced configuration new model laptops can reach quadruple display: Two displays of HDMI1 & HDMI2 output, one display of VGA, one screen of laptop.<br/><b>2.MST FUNCTION: only supported by Windows, other systems DOES NOT support.</b><br/>3.We do not recommend adding an extra extension cable for the hub as it can cause slow transmission, HDMI port not being recognized, or other connective issues.<br/>4.This product is not compatible with Logitech Bluetooth wireless products. When used together, it will cause Bluetooth signal interference, causing the cursor to delay or flicker.<br/>5.As long as the U disk or memory card is inserted, the built-in HUB chip will work at full capacity by default, and the chip temperature will naturally rise at this time. If you use HDMI or VGA, the temperature will be higher, which is normal. <b>When the Hub is working, the heating temperature is acceptable within 150 °F.</b><br/>