1、Equipped with interface protection cover, card reader storage slot design, dustproof, anti-matter, and better security protection. 2、PD charging, while playing and not powering down, a USB-C interface, one for charging, another for transmission of data. 3、With two USB interfaces, a USB3.0, a USB2.0, theoretical transmission rate of 5Gbps, can be connected to U disk, mouse, keyboard, mobile hard disk and so on. 4、Secure Digital / TF card high-speed reading, dual-card dual-use. 5、Support M2 · SSD card expansion, the maximum support 512G. Features: 1. Equipped with interface protection cover, card reader storage slot design, dustproof, anti-matter, and better security protection. 2. PD charging, while playing and not powering down, a USB-C interface, one for charging, another for transmission of data. 3. With two USB interfaces, a USB3.0, a USB2.0, theoretical transmission rate of 5Gbps, can be connected to U disk, mouse, keyboard, mobile hard disk and so on. 4. Secure Digital / TF card high-speed reading, dual-card dual-use. 5. Support M2 - SSD card expansion, the maximum support 512G. Specification: Color: silver Material: aluminum alloy Applicable models: For Macbook Pro 13/15/17 Input interface: the latest USB3.1 Type-C interface Output interface: 2-port USB interface and one SD interface, one TF interface, one type-c power supply interface, one type c data interface, one M-2 SDD interface, one mini DP interface M2-SSD recommended card species Supports all SIZE SATA 1/2/3M.2 SSD For Lenovo SL700 2242 series Transcend MTS400 2242 series MyDigital Superboot 2242 series Package List: 1 * HUB 1 * Instruction Manual