Features 1.4K HD: The USB C to HD Multimedia Interface Adapter features 4K30Hz HD for easy connection to a large screen, and is universal for cell phones and computers. 2.Private Cinema: 4K Type C adapter allows you to connect your phone or tablet to your TV for an immersive, large screen view, making movie watching or gaming more enjoyable. 3.Efficient Office: Type C Docking Station can be externally connected to for Macbook display, large screen clear display, multiplying efficiency, making office presentations more convenient. 4.Convenient Learning: Type C Expander puts the learning video screen into the large display, no need to look down at the small screen, protecting children's spine and eyesight. 5.Aluminum Case: This USB C to HD Multimedia Interface Adapter features an aluminum case that is lightweight and portable, easily fitting into a briefcase. specificationItem Type: Type C to HD Multimedia Interface Adapter Wire Material: PVC Shell Material: Aluminum Alloy Wire Conductor: OFC Oxygen Free Tinned Copper Wire Color: Black Shell Color: Gray Cable Diameter: Approx. 4.5mm/0.18in Cable Length: Approx. 11.6cm/4.6in Interface Type: Type C to HD Multimedia Interface(4K30Hz) HD Multimedia Interface Resolution: 4K30Hz Application: for Computers, Cell Phones, Support Type C Full Featured Interface Devices PackageList1 xTypeCtoHDMultimediaInterfaceAdapter NotePlease allow some errors due to manual measurement.