FeaturesConnectivity 4 x USB 2.0 portsBackwards compatible with USB 1.1Fast Charge Mode14 Fast Charge USB ports for high-power mobile devices such as an iPad or tabletDoes not require a computer to charge devicesEasy To UsePlug and playSleek, compact designWorks with Windows, Mac and Linux notebook or desktop computers Technical SpecificationsStandardsStandardsUSB specification version 2.0 (data rates of up to 480 Mbps)USB specification version 1.1 (data rates of up to 12 Mbps)OHCIUHICEHCIInterfaces Four USB Type A (female) downstream ports, white Upstream USB Type B (female) portConnectivity RulesUp to 127 devices Up to 5 cascaded hubsMinimum System RequirementsWindows 10 / 8 / 7 / Vista / XPMac OS X 10.3 or aboveLinuxPower LED Bus-powered (Blue):Standard Charge ModeSelf-powered (Green):Standard Charge ModeFast Charge ModeSupplied Charging Current1Standard Mode:500 mA total for all USB portsFast Charge Mode1:Max. 1.5 A each for Battery Charging 1.2 compliant devicesMax. 2.4 A each for iPad / iPhonePower Input5 V / 2.5 A DC General SpecificationsTemperatureOperating: 0 to 40 ｰC (32 to 104 ｰF)Storage: -20 to 60 ｰC (-4 to 140 ｰF)HumidityOperating: 10% to 90% non-condensingStorage: 5% to 95% non-condensingDimensions (L x W x H)64 x 64 x 14 mm (2.52 x 2.52 x 0.55 inches)Weight85 g (0.19 lbs)CertificationsFCCCEC-TickICRoHS1 The total combined power draw must be under 2.4 A or 12 W.2 D-Link provides a Windows utility for simultaneously syncing and charging iPads with 30-pin connectors.