MAIWO KH304 4 PORT USB 30 HUB &38; CHARGERFast 4-Port USB 30Turn one of your computer\'s USB ports into four fast data connections Up to 5Gbps data speeds let you transfer HD movies in secondsHigh PerformanceWith update VIA VL813 Chipset Powered via USB no additional power adapter and driverFriendly DesignMini compact size about two ounce in weight making it easy to grab and go Included solid and durable 33ft USB 30 cable lets you easily reach out-of-the-way portsInterfaceUSB 30Connection 11 x USB 30 MaleConnection 24 x USB 30 FemaleCable Length15cmColourBlackCompatibilityWindows XP Vista 7 8 10Mac OS 102 or aboveLinux 9 or aboveProduct Dimensions ( L x W x H )104 x 34 x 20 mm