This Apple laser scanner unit (part number 661-0423) is a vintage piece of technology that is compatible with Apple devices. It is designed for use with the LaserWriter II printer. The unit has been tested and is in good working order. This scanner unit is perfect for collectors of vintage computing parts and accessories. It can also be used for restoration projects or as a replacement part for those who are in need of one. It is important to note that this item has not been described in terms of its condition, and therefore potential buyers should rely on the provided information and images to make an informed decision.