WAVLINK USB 3.0 Hub, 7 Port Aluminum USB 3.0 Data Hub with 5V/4A Power Adapter USB Splitter Hot Swapping for MAC, PC, USB Flash Drives and Other Devices Unibody aluminum exterior is sleek yet durable, effectively resisting scratches and wear from repeated plugging in. 7 downstream ports support data transfer rates up to 5Gbp for your flash memory, SSD, 2.5"/3.5" mobile hard disk drive, Camera etc.,you'll be able to transfer a HD movie in seconds. Powered solely through the USB connection when on the go or connects to the provided power adapter for a higher power output. No drivers required for Windows (32/64 bit) 10 / 8.1 / 8 / 7 / Vista / XP, Mac OS X 10.2 or above Linux. Package contents: 1 x Wavlink 7-Port USB 3.0 Hub,5V/4A US Power Adapter,18-month warranty,thank you card and friendly customer service.