Compatible protective sleeve, compatible with any side mounted USB C hub on the market, allowing you to plug into the hub without removing the protective sleeve from your MacBook Pro True passage, maintaining the functionality of Thunderbolt 3, without compromising on quality; 100W power output charging, 5K video and 40Gbps data speed. It is better than using an extension cable because the connection is unstable and may lower the USB signal Extend service life and protect your MacBook Pro/Air C-port from wear and tear Heat dissipation, effectively reducing and blocking the heat from operating the USB C hub to the MacBook Pro/Air Feature: 1. Protection interface, dual Type-C interface. 2. Stability: Single Type-C port is easy to shake when in use, and the original port will become loose and poor contact after a long time. With it, it can fit tightly without loosening. 3. Restore: restore the functions of the original interface of the notebook, support for Thunderbolt 3 and other protocols. 4. Long-term: repeated unplugging and plugging will damage the machine, and the maintenance cost will be too expensive. With it, it refuses to plug in and out repeatedly, so that the interface life is longer. 5. Compact: compact and easy to carry. Aluminum alloy shell, delicate touch, sturdy and durable; fast heat dissipation, easy heat dissipation. Specification: Product name: Type-C adapter Material: Aluminum alloy + ABS Color: Space Grey Product weight: about 20g Product size: 28.6x15x6.5mm/1.13x0.59x0.26in