FeaturesSuperSpeed USB 3.0High-speed file transfers at 5 Gbps - almost ten times faster than USB 2.04 x USB 3.0 portsFully backwards compatible with USB 2.0 and USB 1.1 devicesEfficient ChargingAble to charge four smartphones or tablets (including iPads) simultaneouslyEasy To UsePlug and PlaySync-n-go minimises user wait-timeWorks on Windows, Mac and Linux computersSleek and Portable DesignSlim and lightweightFits easily in your laptop, backpack or briefcaseTechnical SpecificationsGeneralStandardsUSB specification version 3.0 (data rates of up to 5 Gbps)OHCIxHCI USB 1.1USB 2.0USB 3.0Interfaces4 downstream USB Type A (female) ports1 upstream USB Type Micro-B (female) portConnectivity RulesUp to 127 devicesUp to five cascaded hubsMaximum cable length between each hub: 3 mCompatibilityWindows 10 / 8 / Win 8 RT / 7 / Vista / XPMac OSLinuxPhysicalDimensions75 x 51 x 14.5 mm (2.9 x 2.0 x 0.57 inches)Weight60 grams (2.12 ounces)PowerExternal power adapter 5 V / 4 ASupplied: Maximum 2.4 A per port1 (with external AC adapter)TemperatureOperating: 0 to 50 ｰC (32 to 122 ｰF)Storage: -20 to 60 ｰC (-4 to 140 ｰF)Operating Humidity0% to 80% non-condensingCertificationsCE FCC1 Maximum total 16 W.