Windows supports triple display. But Please Note: When three monitors are connected, the four monitors including the laptop will only display three screens, and the remaining one will be black screen.
Please click Intel Graphics Settings for multi-display setting or hot key: Windows+P
Technical Specifications About Dual Monitor USB C Dock for Laptops
HDMI 1: 4Kx2K 30HZ(3840x2160), downward compatible with 1080P,1080I, 720P
HMDI 2: 4Kx2K 30HZ(3840x2160), downward compatible with 1080P,1080I, 720P
VGA: 1080P@60HZ, downward compatible with 1080P, 1080I, 720P
USB C PD: Power Delivery, max 100W PD input (Doesn't support transfer data)
USB 3.0: Super speed data transfer, 5Gbps
USB 2.0: Data transfer 480Mbps, special for connect mouse and keyboard
SD/TF Card Slot: Can be used at the same time
Cable length: 7 inches
Features: Plug and play, no driver required
Application: Only the built-in usb c port of your laptop is the fully funcitonal port, then it is compatible. Laptop/tablet/mobile phone (With Thunderbolt 3 or USB-C Port that Supports DisplayPort Alt Mode)
MAC OS Display (Does not support triple display)
MAC OS does not support triple display. It only supports mirror mode and dual mode (the three external monitors show the same, but different from the host). It is the OS system restriction.
The resolution of the external monitor will be up to 4K@30Hz when using HDMI1/HDMI2 alone. When three external monitors are connected simultaneously, the resolution is up to Max1920x1080 (1080P) and lower resolutions will be displayed at 60Hz.
Mirror Mode & Dual Mode (Mac OS) Setting
Setting: About This Mac>Display>Arrangement>Mirror Displays
Windows 3 Different Displays (HDMI1+HDMI2)
Windows or MAC OS 2 Displays Extend Mode
Windows or MAC OS Mirror Displays
SD and the TF card (can be used at the same time)
Expansion Capacity for USB devices
RJ45 1000M Ethernet Port


