About this item USB-C Laptop Docking Station 12 IN 1: This multiport usb c adapter to dual HDMI, HDMI 1 up to 4K@60Hz(while source is DP1.4), HDMI 2 up to 4K@30Hz,VGA,2USB 3.0, 2USB 2.0,100w PD 3.0, Gigabit Ethernet up to 1Gbps, SD/TF, 3.5mm Audio Jack. The dock supports Mirror Mode(SST) & Extend Mode(MST).?Note: ONLY Windows system supports MST and display different images. Mac OS DOES NOT support MST, all monitor images are the same. ONLY when your devices support 4K resolution, the video output will be 4K. Ultra HD 4K output & 3 Monitors Display: Dual HDMI Adapter allows you to display the content of your laptop to 3 monitors with crystal clear 3D visual. Single use HDMI 1 can be up to 4K@60Hz, HDMI 2 max up to 4K@30Hz(DP1.4 source). When you connect 2 HDMI, Windows can be up to 4K@30Hz & 2K@60Hz, and MacOS max up to dual 4K@30Hz.(Note:MacOS CAN NOT extend three different screen, due to MacOS limitation.) Display output will be 1080P@60Hz when dual or triple display with VGA. Ultra Speed USB-C 3.0 Dongle: With 2x USB 3.0 ports (up to 5Gbp/s) connect smartphones, tablet, hard drives for effortless data transfer with USB-C port; Due to the USB 3. 0 radio frequency interference to the wireless connection, It is advisable to connect your wireless device to the USB 2. 0 ports(up to 480Mbps); Also the SD&TF Card reader can quickly view your photos or videos, and transfer lots of photos in seconds to your computer, perfect for Photographer or Designer or Video editor,etc. Stable performance&3.5mm Audio Jack: The laptop docking station supports Power Delivery, thunderbolt 3.0 technology with a rated power of 87W and offers significantly faster charging times. And it supports 10/100/1000BASE-T Lan networks, you can enjoy the ultra-fast gigabyte ethernet speed and the reliability of a wired connection directly,worry-free about WIFI's instability.Also usb c dock have a Mic/Audio jack to put in your wired headset, so that you can enjoy music without disturbing others. Why to Choose ABIWAZY Docking Station: Universal docking station works well with all Thunderbolt 3/4 devices, such as Dell XPS13/15, Dell latitude 5420 7420, HP elitebook 840, HP envy thunderbolt 3 4, Lenovo Thinkpad/Yoga, Microsoft Surface pro 7/8, Chromebook etc. laptops. ABIWAZY USB C Docking station Dual Monitor efficiently meets all your working and entertaining needs. We can provide the highest quality products, service, and support.Please feel free to let us know about your concerns.