Product Size: 96.7 * 29.7 * 11mm (no including cable) Cable: 90mm (no including usb-c female) Mini Size
USB 3.0 Max support transfer rate 5 Gbps, backward compatible with USB2.0 and USB1.1.USB ports not charge iPad or other tablets (iPad needed 2A instead iPhone 1A)
The 2 x USB 3.0 can read at the same time. also the USB3.0 allows you to use U disks, Hard Disks-Mouse and Keyboard as your question. supports multiple flash drives, but only supports an external hard drive at any time by the power requirements
Announcements
The HDMI Port can Max Support Resolution up to 3840X2160 4K @30hz with Single Input. if you want to diaplay 4k video in your monitor, you also need to have 4k Source, 4k Cable and 4k Displays.
The 2 x USB3.0 Ports allow you to U-Disks / Hard Drives / Mice / Keyboards the adapter according to your requirements.
This Adapter works well with your Chromebook, Macbook Pro and most of devices that support USB-C DP Alt Mode. (can not connect tablets and Mobilephone)
If you connect usb-c male to your laptop usb-c female, make sure the USB-C male is placed fully to the female in the computer and tight
If you connect USB-C one side and it does not detect your laptops, try the other side to input into your computer.
The USB3.0 Hub of This Adaptercan only support Recognizing SSD.