Satechi Aluminum Multi-Port Adapter 4K HDMI, USB-C Pass Through, Gigabit Ethernet, SD/Micro Card Readers, USB 3.0 - Compatible with 2016/2017/2018 MacBook Pro and more (Space Gray) EXPAND YOUR TYPE-C PORT - features Type-C pass-through charging, 4K HDMI (30Hz) video output, Gigabit Ethernet, micro/SD card reader slots and 3 USB 3.0 ports USB-C PASS-THROUGH CHARGING - quickly charge your Type-C laptop while simultaneously using other USB ports. Note: USB-C charging feature only supports devices with USB Power Delivery protocol 2.0 and higher (max power output 49W) CRYSTAL CLEAR HDMI VIDEO - output high resolution display to your HDMI-enabled external monitor, up to 4K @ 30Hz. Note: HDMI port supports only devices with DisplayPort over USB-C with Alternative mode GIGABIT ETHERNET - adds a fast, wired network connection to your Type-C device for stable internet access DESIGNED FOR TYPE-C DEVICES - 2016/2017/2018 MacBook Pro, 2018 MacBook Air, 2015/2016/2017 MacBook, 2018 iPad Pro, ChromeBook (only models with DisplayPort over USB-C with Alt mode) ASUS Transformer 3 Pro, Dell XPS 12 9365 and newer, HP Elite X2, Spectre x360 13, 15, Pro Convertible, Huawei Matebook, Lenovo IdeaPad 720s, ThinkPad T470, T570, X1 Yoga, 720, 920, Microsoft Surface Go/Pro/Book 2, Razer Blade Stealth, Samsung Galaxy Tab Pro S and more USB-C devices with Power Delivery protocol