Add four USB 3. 0 (5Gbps) ports to your Mac Book using this silver Apple style hub with an extended-length cable 4 Port Portable USB 3. 0 Hub / Aluminum and compact USB Hub Silver USB 3 hub / Rugged design and travel friendly USB 3. 0 hub for Mac / Matches your Mac Book Air or Mac Book Pro Use with Ultrabook laptops / USB-powered so you can carry it anywhere Sleek & stylish sandblasted finish - Universal multi-platform compatibility / no additional drivers required - Supports hot plugging