ORICO  A3H4 is a newest 4 ports USB3.0 HUB, the surface all aluminum alloy material,  durable, appearance and portable, for computer easily extended 4 USB3.0  interfaces.

USB3.0  supports high speed 5 Gbps bandwidth transmission, and backwards compatible  USB2.0 / USB1.1. Supports Windows XP/Vista / 7/8

A3H4  supports hot plug, easy to use. Independent power supply provides strong power  supply for multiple USB devices to use at the same time, independent power switch  to reduce power consumption equipment.

Support  overload voltage and instantaneous current protection function, can be in  suddenly energized cases effective protection is connected equipment and HUB  itself.

Characteristic  LED lamp design, blue lights indicating HUB power supply is normal, 1-4 blue  light scintillation corresponding 4 USB3.0 interface connection equipment read  state, will be more convenient for us to understand the real-time operation. 
            
            A3H4 carrying via VL811 master control chip, with efficient instant processing  capacity and reliable continuous working efficiency, to ensure the safe and  stable transmission, exempt from precious material transmission process  accident lost worry. Connecting device to a computer, the rapid expansion of 4  USB3.0 interface, transmission rate as high as 5 GBPS, is a traditional USB2.0  interface more than ten times. 
  
  Features:
            1. Full aluminum design, fashionable and popular
            2. LED indicators for power status and USB working status
            3.  Support hot plug, plug and play, and the use of simple, easy to carry
            4. Support over current and instant current protection; protect the connected  devices and HUB itself
            5.  USB3.0 supports high speed 5 GBPS transmission, and backwards compatible USB2.0  / USB1.1
            6. Driver support Windows XP/ Vista / 7/ 8
            7.  Independent power supply to provide strong stable power supply for peripheral  equipments
  
  Product Application:
            Applies to connection all kinds of mobile hard disk, U disk, card reader,  mobile phone, digital camera, USB devices, support 4 mobile hard disk work  together at the same time, fully compatible with USB1.1 and USB2.0, support hot  plug, plug and play, no drive.
  
  Specifications: 
            Product name: ORICO USB3.0 high-speed hub
            The product model: ORICO A3H4
            Product material: Whole aluminum
            Product size: 100(L) x 50(W) x 50 (H) mm
            Product color: Black
            Net  weight: 160g 
            Output interface: 4 x USB3.0 type mother mouth 
            Hot plug: support
            Support system: Windows XP/ Vista / 7/ 8 
            Safety  approval: CE and FCC 
            LED lamp, LED Power supply state light - blue light
            LED1 ~ LED4 corresponding USB1 ~ USB4 state light - blue light

Please Note:
            1. This hub is not designed to serve as a standalone charger and will not charge an iPad or any other device with non-standard charge requirements.
2. Mac OS X has a number of issues with USB 3.0 hubs. Until these are fully  resolved with hub firmware and Mac OS X updates, we recommend against using USB  3.0 hubs with Mac OS.
3. 2.4GHz wireless devices, such as wireless keyboard and mouse adapters, may  not work in close proximity to USB 3.0 devices or hubs. Connecting to a USB 2.0  port is recommended.
4. Some USB 3.0 devices require a direct connection to host USB 3.0 ports,  including some USB 3.0 hard disks.