4-Port USB 3.0 Extension Hub Alxum 4-Port USB 3.0 Extension Hub with 4ft long cable makes it easier to connect devices, avoiding the trouble of loose plugs and repeated plugging. This 4ft long USB hub is designed to provide convenient acce to devices with USB 3.0 ports, suitable for Oculus Sensor, Playstation, PS4, Xbox one, mouse, keyboard, mobile hard disk, etc. With Micro B Power Supply Port 1, The USB extension hub supports BC 5V/1.5A low-speed charging, please connect the power adapter when charging. This does not mean that when you charge 2 or more devices at the same time, each port can reach 5V/1.5A.(Not Included: Micro USB Cable and USB Power Supply).2, For a stable connection, the devices connected to the Hub must not exceed a combined current of 5V 0.9A, otherwise, you need to connect a power adapter. Feature 1, 4-Port USB 3.0 Extension Hub - This USB multiport adapter connects up to 4 USB devices to your PC or Laptop, such as keyboard, mouse, external hard drives, USB flash drives, webcam, speaker, USB stick, printer, and more. Alxum multiple USB extension cables save you the trouble of repeated plugging and unplugging.2, USB 3.0 Hub with Long Cable - Built-in 4ft (120cm) extension long cable can extend hard-to-reach USB ports to your desired location, which makes it ideal for desktop computers.3, Micro B Charging Power USB Hub - Support BC 1.2 charging and can provide up to 5V/1.5A current, Some devices that need current more than 900mA, such as HDD, need an external power adapter.4, SuperSpeed USB 3.0 Hub - The USB port extender supports super faster data transfer up to 5Gbps, which can transfer HD movies or files in just seconds. Backward compatible with USB 2.0 and 1.0.5, Wide Compatibility - Best USB extension cable with multiple ports is compatible with Windows 10/8/8.1/7 / Vista / XP and Mac OS, Linux, and Chrome OS. No drivers are needed, plug and play. Specification Built-in Overvoltage & Overcurrent Protection: To achieve a stable and safe connection to reduce signal lo while transferring data.Ultra-thin and Compact Design: It saves your desk space and is easy to carry when traveling or working on the move.LED Indicator Design: Through the LED indicator, you can easily monitor the connection status. Packing Content 1 x Alxum 4-Port USB 3.0 Extension Hub(Not Included: Micro USB Cable and USB Power Supply)