USB splitter-- compact and light, suitable for home, office, travel, business trip, etc.
USB hub transfer-- independent sub- control : each is independently controlled, and the button can be turned off when the USB flash drive is plugged in and not in use.
USB hub-- the USB hub solves the troubles of the computer's external interface.
USB extension device-- lightweight and comfortable, more convenient to store and carry around.
Portable USB splitter-- 1 USB charging port (red port) only has the charging function, the current (max) can reach 2.4a, and it needs to be equipped with a power supply.