This is the I-O DATA AVHD-A2.0U. 2TB. Uses a high-grade custom hard disk. Supports long-duration recording. Includes the original AC adapter. I have briefly confirmed its operation. CDI: Normal. Formatted. Has some scratches. Relatively clean. Everything shown in the pictures is included. - Power adapter: Included - Color: Black - Connection: USB - Power button: Yes Thank you for viewing.