This ideal foot controller for the VK-88 is very similar to the PK-7, but it's more complex and comes with unique features like Pedal Attack and Pedal Sustain functions.
20-key MIDI pedalboard with detachable EV-7 style expression pedal
2 footswitches for controlling Rotary slow/fast and Rotary Brake operation as well as VK-77 parameter data like Seq Start/Stop, Preset Up/Down, Orch Glide, etc.
Hold switch (damper)
Separate outputs (expression, hold, foot-L, foot-R) for use with instruments including the VK-7
MIDI Merge function for enhanced MIDI control
No power cable required when connected to VK-77