Feature: Specification: Features: [Specially Designed]Designed for 2018 2020 iPad Pro 11/12.9 with USB C port, quick expansion for your iPad Pro with 3.5mm Audio Jack, USB-A Port, 4K HDMI Port, 100W Type-C Charging Port, SD/TF Card Slot. Plug and play, no driver/software is needed .Can be used with switch Smart Keyboard Folio and iPad case. [Multifunctional USB 3.0 Port]Gived you a high data transmission speed up to 5Gbps. also can connect with a keyboard/mouse/other usb devices to be a computer to increase your typing speed .Great for packing on trip or bringing to class instead of carrying your laptop. [The important 3.5mm Audio Jack]Support Microphone input and vodep output. You can adjust the volume both on iPad Pro or in-line volume control on earphone/headset.You can bring headphones when working to shield outside interference. [4K HDMI Display & USB-C Charging]Useing your iPad with the hdmi port can connect to projector and do a presentation or speech in classroom. The usb-c port supports 100W power delivery, can transfer video while charging.(Tips: Video output for 2018 iPad Pro is 2K@60HZ resolution) [SD/TF Card Reader and quality assurance]SD and TF card readers support up to 512GB. Sharing photos and videos with your families and friends. Specifications: Brand: dodocool Color: Grey Material: Aluminum alloy Product Size: 9 * 4cm/ 3.54 * 1.39inch Package Size: 16.3 * 7.9 * 3cm/ 6.4 * 3.1 * 1.1inch Package Weight: 105.01g/ 3.7oz Package List: 1 * USB Hub 1 * Magnetic Gasket 1 * Storage Bag 1 * Instructions 1 * Package Box Package List: 1 * USB Hub 1 * Magnetic Gasket 1 * Storage Bag 1 * Instructions 1 * Package Box