Feature: 1. 4 Port USB Hub: This USB hub is designed with 1 USB 3.0 and 3 USB 2.0 ports. And all 4 ports can work at the same time, plug and play, no need to install drivers or software. 2. 5Gbps High Speed: This USB docking station provides ultra fast data transfer through the USB 3.0 port, with speeds up to 5Gbps, allowing you to transfer data in seconds. The other three USB 2.0 ports reaches up to 480MB, and the USB port extender has inbuilt OTG function chip, which can easily connect USB devices such as mouse, keyboard and USB flash drive. 3. Widely Compatible: This USB hub for laptop is compatible with USB cable, flash drive, keyboard, mouse, card reader, mobile OTG adapter, printer, camera, USB fan. Suitable for OS X Laptop Pro 2021, 2020, 2019 and more. 4. Aluminium Alloy: This mini USB hub is made of premium aluminium alloy material, fast heat dissipation, strong, durable and resistant to wear. This hub supports output currents up to 900mA, so some hard drives that require more than 900mA require an external power adapter. 5. Small and Portable: This USB multiport adapter is small and thin, lightweight and portable, a perfect partner for your home, office work and travel. Advanced chipset and nice heat dissipation design, stable and durable. Specification: Item Type: USB Hub Dock Material: Aluminium Alloy Color: Grey Input Port: USB Output: USB 3.0 x 1, USB 2.0 x 3 USB 3.0 Transmission Speed: Up To 5Gbps USB 2.0 Transmission Speed: Up To 480Mbps. Package List: 1 x USB Hub Dock