All-in-one card reader with 2.0 HUB function and superb quality of workmanship. One USB port expands to three 2.0 USB ports, each powered up to 500MA. And built-in current overload short circuit protection device. Reader can only read one type of card at the same time, when reading the card, hub can work at the same time. It can be directly connected to the computer, no need for external power supply, simple and easy to use. The computer automatically recognizes the installation, no driver required, plug and play. It is constructed of abs material. The length of this product is 7.4cm, the width is 7.4cm and the height is 3cm. This card reader is suitable for home, office, school, etc. Item Name: Card Reader Material: ABS Features: Small, Practical, Convenient, Widely Used Style: USB 2.0, Plug-and-Play USB 2.0 Interface: Supports USB 1.0 or 1.1, Transfer Speed 1.5 or 12 or 480 MBPS. Size Details: Size: 7.4cm x 7.4cm x 3cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Card Reader