Aluminum Hubs: 7 USB3.0 Ports, Easy connect peripherals like mice, keyboards, flash drives, card readers, or an external hard drive to your PC laptop or Mac. | Super Speed Data Transfer: USB 3.0 ports transfer photos, videos, and music at up to 5Gbps, backwards compatible with USB2.0 and 1.0. | Plug And Play: Hot-swapping. Upgrade 20W (5V 4A) AC power adapter ensures safe & steady data transfer for all connected devices. | Compatibility: Silver brushed aluminum body. Support Windows , Linux , Mac OS. Compatible with laptops, PC desktops, and Apple PC. | Package Contents: Rybozen 7-Port USB 3.0 Hub with 4.9Ft USB cable ( Upgrade ), 5V / 4A Power Adapter , 60-Days Money Back Guarantee and 18-Months warranty.