The MXR Carbon Copy is a pedalboard-friendly analog delay.
It offers up to 600ms of maximum delay time that can be garnished with modulation. And for those, who do not agree with the standard modulation-setting, a trim pot inside of the true bypass pedal offers the possibility to attune the modulation to your very own needs.
The MXR Carbon Copy runs on 9V and is especially famous for its touring delay qualities.
Unfortunately, the mono pedal does not provide tap tempo or inputs for an expression pedal or midi.
Actually, the MXR Carbon Copy is an insider tip that is no secret anymore and it is still available without any problems.
On my cult-factor-scale, the MXR Carbon Copy gets 7 of 10 points.