[NOTE] The Mac OS itself does not support split screen effect. LASUNEY 10 in 1 Hub achieving the extended mode by the following steps needed from you: Set-Display-Arrange-Cancel Mirror Display. Also please drag the setting box to the page of the external display. Then you can get one display of HDMI1+HDMI2+DP, one display of your laptop. Totally two different contents for Mac OS. | [VIVID HD 4K OUTPUT & MULTIPLE DISPLAY] Mirror or extend your screen with HDMI ports and DP Port, directly stream HD 4K video to HDTV, monitors, or projectors for a cinema-like visual feast. Under Extended Mode, you can totally enjoy 4 multiple display from 2 HDMI output, one DP output and one screen of laptop. For Collage Mode, our hub support triple display: one of HDMI output, one of HDMI+DP and one of laptop. But only Windows system support MST, Mac does not support. | [RELIABLE AND SUPPER-SPEED DATA TRANSFER] Two USB 3.0 ports supporting transmission speed rates up to 5 Gbps and one USB2.0 compatible with more data devices. Built in SD and TF slots for easy access to files from universal SD and Micro SD Memory Card, support 2 cards reading simultaneously. 1000Mbps Ethernet port perfect standby for laptops without Ethernet sockets when wireless network fails. | [POWER DELIVERY] LASUNEY Multiport USB C adapter provides one Type-C pass through Female port by which you could securely charge MacBook or other Type-C laptops. It supports 100W power in and power out (charging) is limited to 87W for safety after connecting the original charger of your laptop to the type c port on the hub. | [STYLISH DESIGN, PREMIUM BUILD AND BOARD COMPATIBILITY] LASUNEY 10-in-1 USB C Hub is made of thin and sleek precision milled aircraft grade aluminum enclosure, light enough to take with you anywhere. New Space Gray color is perfect complement for your Pro's look. It is an ideal USB-C expansion hub for Apple MacBook, Apple MacBook Air, Apple MacBook Pro, Apple iMac / iMac Pro (21.5 inch, 27 inch), Google ChromeBook Pixel, Dell, as US, HP, Lenovo, and many other Type C laptops.