Many memory cards can be read directly, including the memory TF card of Nokia mobile phones, which can be directly read, thank you! Many parents don't know what a hub is, so let me explain to them! Are many parents always troubled by the lack of USB ports on the computer? This hub is a multi-port USB, that is, three USB ports in one. Product parameters: Product Specifications: Length 7.5cm Width 5cm Height 2.5cm The USB cable is about 50 cm long Features: - The card reader can only read one kind of card at the same time. For example, when inserting the SD card, you cannot insert other cards at the same time, otherwise the card will not be recognized (in fact, most people will not read multiple cards at the same time). While reading the card, the HUB can work at the same time without affecting each other; - This USB Hub is actually capable of driving 80G mobile hard disks. Large-capacity mobile hard disks have not been tested and may not be able to carry them. Both the 2.0 HUB function and the multi-in-one card reader, the workmanship quality is super good * One USB interface can be expanded to three, small, practical and convenient, expand three 2.0USB interfaces, each power supply can be up to 500MA * Adopt the second generation USB HUB controller * Directly connected to the computer, no external power supply required, easy to use * The computer automatically recognizes and installs, no need for drivers, plug and play, plug and unplug * USB2.0 interface, support USB1.0/1.1, transfer speed 1.5/12/480MBPS * Built-in current overload short circuit protection device Very convenient! All-in-one function of USB Hub and Card reader High-grade blister packaging, good gift too! Card reader plus hub, make you as convenient as possible Support Card Type MS/Pro Duo, M2, SD/MMC, Micro SD