This product is a recording hard drive designed for quiet operation and energy efficiency. Its quiet operation during recording makes it perfect for use with a second TV, such as in a bedroom. Furthermore, it doesn't require a power supply, so you can install it neatly behind your TV without worrying about the location or number of outlets. It's also ideal for those using wall-mounted TVs or TV stands. In addition, this product is equipped with a domestic manufacturer's TVS REGZA/Toshiba drive. By using a carefully selected drive, it achieves stable operation as a recording hard drive.