EC Technology Premium 4-Port Aluminum USB 3.0 HUB 5Gbps Speed OTG with built-in Cable for Mac, Windows, and Other Laptops - Silver Apple-style aluminum finish creates a natural extension to your Mac computer(Mac OS 10.4x or higher version) and Windows PC(Windows XP / Vista / 7 / 8 / 8.1 32/64-bit) Enjoy USB 3.0 5Gbps ultra-high-speed transfer when and wherever you need. On-to-go pluggable design, no driver required. Built-in cable provides anti-jamming capability and ensures more stable transfer or charge, as you wish! Unique Micro B power supply port provides a steady charging performance when connected with a high-power devices Package contents: 1 x EC Technology USB 3.0 4-Port Hub with cable, 1 x user manual