7-IN-1 Expansion: Multiple-Display USB C docking station to dual HDMI 4K (1*60HZ & 1* 30HZ), 1*60HZ DP, 1*1080P VGA,3* standard USB 2.0 ports, with four high-definition video output ports,Under Extended Mode, you can enjoy 5 multiple display from 2 HDMI output, 1*DP output, 1* VGA and 1*screen of laptop. Please Note: ONLY Windows OS can extend four display (support MST), Mac Does Not support Extend Mode, HDMI 1 and DP will be 60HZ while work separately while source is DP1.4 Docking Station Dual Monitor:Attention: On Mac devices, ONLY Mirror Mode, CAN NOT extend two different Screen, due to Mac OS limitation; Connect device with USB Type C (tunderbolt 3) port to two external monitors ; You can enjoy movies,games with your families on external ultra HD big screen; ON Windows this usb c dual hdmi adapter support SST and MST mode, if you not sure how to setting, please let us know, or download the user guide in Product information->Product information Thunderbolt 3 to Dis