fast connection: full 10/100/1000mbps gigabit ethernet performance over the usb 3.0 port, more reliable and stable in a multi-connectivity environmentled indicator - green led indicator for proper connection and yellow led indicator for network communication.easy ethernet connection: repair network card damage problems, you can connect to the internet via usb again, easy and convenientusb3.0 adapter usb 3.0 to 10/100/1000 gigabit rj45 ethernet lan network adapter dock for laptop macbook pro smart adaptor. the gigabit ethernet adapter adds a single rj45 ethernet port to a usb-enabled computer system, with support for gigabit network connections at full bandwidth of 1000mps.