Macally 3-Port USB 3.0 HUB Plus Gigabit Ethernet Port for Mac/PC(U3HUBGB) 3-Port SuperSpeed USB 3.0 hub for easy and fast connectivity One Gigabit Ethernet port, connection speeds at 10/100/1000Mbps USB data transfer rates up to 5Gbps Designed to work with or without AC adaptor 5V/3A AC adapter included for high power consumption devices Built-in USB 3.0 cable for easy portability, backward compatible with USB 2.0 Hot Swappable and pug-n-play Sleek, compact design to accommodate any Mac and PC