Features Adopts aluminum & high-grade ABS materials with a matte surface, simple & fashionable. 7 USB (Universal Serial Bus) 3.0 ports are well laid-out & not conflicting, each providing theoretical 5 Gbps transmission speed. Utilizes the latest VLI812 high-performance USB (Universal Serial Bus) 3.0 chipset, the compatibility, & read-&-write speed are excellent. Supports overload voltage & transient current protection, ensuring the security of connected devices & the hub itself. Drive free & support Windows XP/ Vista/7/8, Linux & Mac computer with a USB (Universal Serial Bus) port. Independent power supply with LED indicator.