8 IN 1 USB HUBSokiwi usb hub is equipped with 6 USB A 3.0 ports and SD/TF Card Readers. The usb 3.0 ports can transfer data at the speed up to 5gbp/s while the SD/TF Card Readers is 80MB/S(Write) and 104MB/S(Read). POWERED USB HUBThis powered usb hub can be connected to external power source through a 5V/4A power adapter, which allows you to use more high power-consuming devices like external hard drives.