The rotatable housing allows more flexible positioning of the ports. Compact design for travel, no extra software/drivers required, plug & play. VIA chipset for maximum compatibility and performance. Super-speed USB3.0 ports support data transfer rates of up to 5Gbps. LED indicators display the status of bus-power supply and USB connections. Perfect for Surface, laptops, ultrabooks, or any system where USB ports are limited.\n\n- Plastic and Aluminum\n- 4x USB3.0 Type-A ports\n- Support System: Windows XP (and above), Mac OS X 10.2 (and above)