The Roland RPU-3 Pedal Unit features three piano style pedals in one easily manageable unit. Each pedal features a separate connection for traditional Soft, Sustain and Sostenuto pedal use, or control over various keyboard functions such as the Rolands FP-7F's Looper and harmony effects.
The Roland RPU- 3 Pedal Unit is a must have for the VPC1 along with a Midi Expression iO.
If you are a professional pianist like me, then I would highly suggest these to use with your Roland digital piano. This unit replicates exactly the pedal functions on a real grand. Not just damper, but also the soft (una corda) function and sostenuto as well. This is an excellent accessory for the FP-7F that I use, but also other digital pianos made by Roland.