The LAN adapter provides all high-speed 1000/100/10 Mbps network performance through the RJ45 Ethernet port
4K HDMI Video Output: Delivers high-definition audio and video; up to 4K (3840x2160@30Hz) resolution and you never worry about blur, distortion and delay

DRIVER-FREE INSTALLATION with no external software drivers required for Windows; Mac OS may require a driver download for the Ethernet function
High Speed Data Transfer: Supports USB 3.1 data transfer rate up to 5 Gbps for 1000 BASE-T network performance with backwards compatibility to 10/100/1000 networks.
You don't need to wait for loading and buffering WIFI, a quick and simple Ethernet connection lets you access to speeds up to 1 Gbps.

Multi-ports
-Thunderbolt 3: up to 4k@30Hz video, up to 40Gb/s data speed
USB-C port: 5Gb/s data speed
SuperSpeed USB 3.0: transfers data up to 5Gbps, fast enough to transfer a high-definition movie in seconds.
RJ45 Gigabit Ethernet Port:Supports positive and negative plug, audio and video synchronization, ultra-high-definition 4K quality, 1000Mbps Ethernet LAN
4K HDMI (30hz):support 3840*2160P/30HZ 4K Ultra HD video output device, HD display, LCD TV and Projector etc.
Specification
1000Mbps Gigabit Ethernet The LAN adapter provides all high-speed 1000/100/10 Mbps network performance through the RJ45 Ethernet port.
Wide Compatibility Suitable for all new MacBook, DELL XPS15, HP Spectre X360, Chromebook, Samsung Tablet.
Sleek Aluminium Design ,Aluminium alloy design,perfectly matches the design