With power supply and tested. The Atari 1050 Disk Drive is a vintage gaming accessory designed for the Atari video game consoles. It allows users to load and save game data on floppy disks, providing additional storage and functionality for classic Atari games. The product includes a power supply, ensuring that it can be powered and used for gaming purposes. Although untested, the fact that it powers on indicates that it may still be in working condition, making it a valuable addition to any retro gaming collection.