This IBM Auto 16/4 Token Ring PCI Adapter 2 is a great addition to your vintage computing collection. It is compatible with IBM devices and comes with a unit quantity of 1. The interface card is perfect for those looking to complete their vintage parts and accessories collection. It is sealed and has not been opened, making it a great find for collectors. The adapter is a unit type and is designed for use with IBM devices. It is a great choice for those looking to enhance their vintage computing experience.