Smart chip prevents overload, overvoltage, overcurrent, short circuit, overcharging, and voltage regulation. Plug & play, designed for use with portable devices like wired keyboards, USB flash drives, 2.5mm external hard drives, etc. Easily expand your PC's SD and TF card slots, supporting up to 512GB SD cards. Compatible with USB-C Power Delivery for high-speed pass-through charging to your laptop at up to 87W. Features a brilliant 4K HDMI display (30Hz) for seamless presentations, conference calls, and video streaming on the go. Provides high data transfer speeds, lightweight, and a suitable size to carry in your laptop bag when traveling. Easily transfer photos or videos from your camera card to your laptop in seconds. Specifications: Material: Aluminum Alloy Color: Gray Operating Temperature: 40-45°C Cable Length: Approx. 150 mm USB Hub Width: Approx. 30 mm USB Hub Length: Approx. 107 mm USB Hub Thickness: Approx. 11 mm There are 8 models to choose from, each with different interfaces and appearances. Please select the appropriate model before purchasing: (1) 4-in-1 Type A: USB3.0*1 + USB2.0*3 (2) 4-in-1 Type B: USB3.0*1 + USB2.0*1 + PD 87W*1 + HDMI*1 (3) 5-in-1: USB3.0*1 + USB2.0*2 + PD 87W*1 + HDMI*1 (5) 6-in-1 Type A: USB3.0*1 + USB2.0*2 + SD*1 + TF*1 + HDMI*1 (6) 6-in-1 Type B: USB3.0*1 + USB2.0*1 + SD*1 + TF*1 + HDMI*1 + PD 87W*1 Compatible Models: MacBook Pro/Air 2017/2018/2019/2020/2021, ChromeBook, Dell XPS 13/15, Dell Latitude 13 7000/Latitude 13 E7370, ASUS ZenBook TP360CA/3, Huawei Matebook, HP Spectre x2/HP Spectre x360/HP Spectre x360 2 1012/HP Elitebook Folio G1/HP ZBook 15 G3/HP Laptop 13-af001TU/HP Probook 450 G5/6/7, Dell XPS13/15, Lenovo Yoga 720/910/920/930, Microsoft Surface Book 2/ Surface Go / Surface Laptop 3, etc. Package includes: 1 x USB C Hub