Full-Featured Type-C Interface: Data transmission and PD charging and video output, the computer connects directly to the Type-C port, transmission speed is the same as the computer interface 4K HD compatible HD video output, suitable for business meetings, home entertainment Secure digital or TF card reader supports up to 2T 3.5mm Headphone or Mic 2-in-1 Interface: Support audio cable control, more convenient to listen to songs Tight Fit: Double-headed one-to-one tight fit, leaving no gaps, firm and not loose Stable performance and fast heat dissipation: ABS and Plexiglas material Specifications: USB-A 3.0: Can be used to connect USB mobile devices at 5Gbps HD compatible interface: 4K (3840x2160) 30HZ video transmission Type-C: can be used for charging (PD60W or 100W), 10Gbps transmission Audio microphone: adaptive microphone, audio Secure digital or TF card slot: support simultaneous reading of dual cards, up to 2TB Product Size: Approx. 108 x 32 x 10.5mm or 4.25 x 1.26 x 0.41 inches Note: Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture. Due to manual measurement, please allow a 1-2cm measurement deviation. Thanks for your understanding.