1、Multipurpose: Excellent expansion adapter to connect multiple devices/accessories to your devices like mouse, portable hard drive. USB, memory card and camera. 2、Applies To: Macbooks and other devices that support USB C. PD fast charging, while charging and playing without power, supports PD fast charging, which can quickly charge notebooks. 3、Massive Expansion: Provides additional 2 USB 3.0 ports, supports transfer speeds up to 5 Gbps (backward compatible with USB 2.0), and provides 2 slots for SD and mircoSD cards, and an additional Type‑C port. 4、Multiple Card Types Supported: SD, SDHC, SDHC UHS‑l, SDXC, SDXC UHS‑l, MicroSDXC, MicroSDXC UHS‑I (up to 2TB). 5、Portable: Can be put in a bag or pocket, lightweight and easy to carry. Plug and play, no driver required, very convenient and practical to use. Item Type: USB C Hub Product Material: Aluminum Alloy Interface: 2 x USB3.0, 1 x TF, 1 x SD, 1 x Type-C USB3.0 Transfer Speed: Supports Up to 5 Gbps Transfer Speed (Backward Compatible with USB 2.0) Supports Multiple Card Types: SD, SDHC, SDHC UHS-l, SDXC, SDXC UHS-l, MicroSDXC, MicroSDXC UHS-I (Up To 2TB) Applies To: for Macbooks and Other Devices That Support USB C 1 x USB C Hub