It was a sample product. Almost unused. 【Please Read Before Purchasing】 Due to the nature of this product, a scanner that transfers high-resolution image data at high speed, the connection to the scanner may be lost if the USB bandwidth limit is reached in an environment where high-load devices are concentrated on the same USB bus, as follows: 【3-in-1 Super Multi-Function Scanner】 All the functions you want are realized in this one unit! 【Scanner】 Scans up to A3 size in 1 second! Quickly clear away accumulated documents! 【Web Camera】 12 million pixels x multi-joint arm for beautiful shots at any angle! 【Document Camera】 Great for web conferences and lectures! Share your hands and materials at any time. Multi-joint design for easy storage and a tidy desk! Equipped with a macro lens & can clearly photograph coin sizes.