Features: brand new and high quality 7 USB3.0 (blue) has: charging + data transmission function, 1 USB (red) only has the charging function, the current (max) can reach 2.4A, and it needs to be equipped with a power supply! Therefore, eight ports can be charged at the same for time, and eight mobile phones can be charged. With a for DC power supply port (5.5mmX2.5mm), this link single product does not have a power adapter. It is recommended to be equipped with a 5V/3A (15W) power supply to meet the current demand. Independent sub-control switch: each switch is independently controlled, and you can directly turn off the button when the USB flash drive is plugged in and not in use! The blue interface has a blue LED design, and the red interface has a red LED design. In addition to the daily use of the computer, it can also be used with the adapter to be plugged into the socket separately. At this for time, it only has the charging function! Suitable for occasions with concentrated population, such as hotel reception/office/reception room, etc. With the universal adapter in the office, your device does not require any drivers — for most for Windows, for Mac, Linux and laptops with USB. Plug and for play, no driver required, support hot swap. Specifications: Material: Aluminum Alloy Weight: 200g Size: 15.5x6.2cm/6.1x2.44inch Length of Power Supply Line: 1.0m/39.37inch Line Length of Splitter: 1.5m/59.05inch Power Supply: 5V/3A Power Supply Interface: for DC Round Mouth Interface Type: 7 USB3.0+1 USB Charging Port Package Includes: 1x USB Hub note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.