LED IndicationAccording to the above said, when source or sink is working, the LED relative to is light. When the indicator lights has turn on, the displayport switch converter can provide you with transfer rates up to 48Gbps and can compatible with all DP standards devices.Important NoteWhen you connect to multiple display, it required external power which is DC5V power supply to maintain connection. Also, this is DisplayPort Switcher, Not -compatible or USB-C Switcher. Please do not confuse it. Thank you!Specifications:1. DP Resolution: 8K@30Hz/4K@120Hz/1080P@240Hz2. Input/Output TMDS Signal: 0.5~1.5Volts p-p(TTL)3. Input/Output DDC Signal: 5Volts p-p (TTL)4. Input Cable Distance: ≤15m AWG26 -compatible standard cable5. Output Cable Distance: ≤20m AWG26 - compatible standard cable6. Max Working Current: 1000mA7. Operating Temperature Range: (-15 to +55℃)8. Operating Humidity Range: 5 to 90%RH (No Condensation)Color: blackMaterial: aluminumPackage Contents:1 x Bi-direction Switch1 x USB Power CableOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.Product Features: 1. DP Bi-direction Switcher. This displayport switcher support DP1.4 and Bi-direction, which means you can connect it in two-way. You can connect two DP source to one DP display or connect one DisplayPort source to toggle between two displays.2. Up to 8K@30HzSupport 8K@30Hz,4K@120Hz,1080P@240Hz HD resolution both input and output. This Displayport converter can provide you a and clear image when transfer to multiple media devices. (Note: please make sure you have connect standard DP 1.4 cable.)3. Plug and PlayThis DP switch box is easy to to setup and operate. Also, it can install in minutes. Just press the button, the indicator lights has swap signal and show the working status in a second.