Screen parameters:Appearance size: 55x85mmDisplay area: 49x74mmResolution: 320x480Thickness: 8mmViewing angle: IPS full viewing angleInterface: USB Type-c interfaceFrame material: metalColour: Black1. How to use?Link the mini secondary screen with the computer, and then start our customized software, no need for AIDA64, no need for other cumbersome settings2. Why doesn't the graphics card data move?General notebook users generally use monitors on standby, and only use the core monitor to save power, and the secondary monitor monitors the more important monitor. Of course, the graphics card monitors the data does not change.3. Can other content be displayed?No, it can only display the content of custom software settings4. USB interface version?USB1.0 USB2.0 USB3.0 unlimited, as long as it is USBPackage Contents:1 x 3.5-inch display screen1 x 1 meter USB Type-c cable1 x Place the bracketOnly 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.