This is a Pre-Owned Roland GP-16 with Roland FC-100 foot controller I used when touring in the 90s. Some minor wear and tear (a bit more on the footswitch), but in perfect working order. I haven't turned it on in years but when I did recently all my user patches were still intact! You can attach an expression pedal to foot controller for wah/volume/expression effects. The full manual is available online.
Before Fractal and Kemper, we had the GP-16! The GP-16 is a Digital Effects Processor that contains a Compressor, Distortion, Overdrive, Picking Filter, Step Phaser, Parametric Equalizer, Noise Suppressor, Short Delay, Chorus, Flanger, Pitch Shifter, Space-D, Auto Panpot, Tap Delay, Reverb. While the distortion effects are probably not the most amp-like...The Modulation/Delay effects are quite nice. Comes with cable to connect the unit to the footswitch.
As of now, I am not wanting to separate the two units.