• Expands laptop/desktop with 3-port USB 3.0 hub and RJ45 gigabit Ethernet port. • Supports 10/100/1000 Mbps Ethernet performance over USB 3.0. • Connect up to 3 USB A devices (external hard drive, flash drive, mouse, etc.). • Compatible with Macbook Air, Nintendo Switch, iMac, Surface Laptop, and other devices with USB A. • USB 3.0 hub supports data transfer rates up to 5Gbps. • Provides a more reliable connection than wireless. • Plug and play, no driver installation needed on most operating systems.