Instantly Add Four USB 3.0 Ports to Any Compatible Device Supports Transfer Speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), 12Mbps (USB 1.1) Reverse Compatible USB 2.0 and USB 1.1 Easy Setup, Plug-n-Play, Hot Swappable, Hot Pluggable Compatible With All Windows/Mac/Linux Systems