Operating Manual1) Connect the computer to the USB3.1 type-c port of the product2) Use the HDMI head to connect the HDMI master block of the product to projector, TV, monitor etc.3) Used to connect MicroSD/SD memory card. Insert and read firstSimultaneous reading is not supported.4) Connect USB30 port to USB devicesMatters Needing AttentionSince the current output of the new Macbook is about 1. 5A, when the load exceeds 1.5A, the computer will start the self-protection function. It will prompt: USB is power-consuming and disabled, so unplug the converter (and close the disable icon or reboot) and re-insert it.Matters Needing AttentionSince the current output of the new Macbook is about 1. 5A, when the load exceeds 1.5A, the computer will start the self-protection function. It will prompt: USB is power-consuming and disabled, so unplug the converter (and close the disable icon or reboot) and re-insert it.

18 months warranty: Offers 30 days money back and 18 months product warranty if the problem is caused by our side. More Expansion: Get way more out of your laptop’s USB-C port, with 4K HDMI, SD card connectivity, USB-A data ports, as well as high-speed pass-through charging with Power Delivery. 4K HDMI to USB C Hub: The USB C Hub provides you with lifelike 4K 3840 x 2160@30Hz HDMI images that bring an immersive 3D resolution experience. Max 100W PD charger: 100W Power Delivery Supported: The USB C Hub supports a 100W USB C pass-through charging, ideal for MacBook Pro/Air or and other USB c devices, your primary choice of USB C Hub. 7 in 1 USB-C Hub: The Type C Hub compatible with 3*USB 3.0, 1*4K@30Hz HDMI, 1*Power Delivery and TF/SD card readers, meets all the request of Type-C laptops.