This is a hardware compressor with good cost performance. I purchased it new a few years ago and have only used it once, so I believe it's in excellent condition. I have confirmed that it powers on and functions correctly before listing it for sale. The listing includes the main unit and the power cable. Please note that the original box is not included. Thank you. The RNC1773, a high-performance compressor with a gain reduction meter, is an ideal tool for improving sound quality. - Model Name: RNC1773 - Function: Compressor - Features: Gain reduction meter, Super Nice mode - Control Knobs: 5 adjustment knobs (Threshold, Release, Gain, etc.) Thank you for viewing.