CS0003 is a type of Logilink USB converter, which is used to connect a USB device to an external computer. It is a plug and play device, so no special drivers are needed to install this device. The device has a USB Type-A port, so any type of USB device can be connected. It can also be used to charge mobile devices, such as phones and tablets, as it supports up to 10W of power. The device is compatible with Windows and Mac, so it can be used with most computers. Furthermore, it is very small and portable, making it ideal for travelling or carrying in your pocket.