Ollow Hollow USB 3.0 Hub 4-Port with 5V 2A Power Adapter Included compatibility Linux OS X and Windows support and full USB 2.0 compatibility with all USB 3.0 hosts, including Mac OS X, Microsoft Windows 8 and earlier, and Linux kernels 3.0 and later. Apple SuperDrive not compatible. Older Mac Pros with USB 3.0 PCIe add-in cards do not work with this or any hub. Full forward and backward compatibility between USB 3.0 and 2.0/1.1 hosts and devices. Requires no driver install (although individual devices will, as usual). 2.4Ghz wireless devices, such as wireless keyboard and mouse adapters, may not work in close proximity to USB 3.0 devices or hubs. Connecting to a USB 2.0 port is recommended.