【Sale until January 5th】 A hard disk with a large 4TB capacity that allows for 24-hour continuous recording. - Brand: I-O DATA - Model: AVHD-US Series - Capacity: 4TB - Supported Resolution: 4K compatible - Connection Cable: Approximately 1.5m USB cable included - Features: 24-hour continuous recording possible - Size: 502 x 75 x 104mm - Series: AVHD-US Series Thank you for viewing. Opened, but unused. Purchased for 16,934 yen. I am selling it because it was not compatible with my devices.