Specs

• Keyboard - 88-key, Tri-sensor Scaled Hammer Action II
• Maximum Polyphony - 256 Notes
• Number of Tones - 340 Preset / 220 User
• Controllers - 4 knobs, 6 sliders, Pitch & Modwheel, 2 Pedal Inputs
• Arpeggiator - 4 simultaneous programmable
• Phrase Sequencer - 8 Tracks, up to 1,000 phrases
• Storage - USB / File & Audio Recording
• System Effects - Reverb, Chorus, Delay, String & Damper Resonance
  • Insert Effects - 4 simultaneous / Equalizer, Compressor, Limiter, Enhancer, Early Reflection, Phaser, Chorus, Flanger, Tremolo, Auto Pan, Rotary, Drive Rotary, LFO Wah, Auto Wah, Distortion (w/ Amp Simulator), Pitch Shifter, Multi Chorus, Ring Mod, Delay, Piano effect
• Master Effects - 4 Band EQ & Compressor
• Independent USB & MIDI I/O
• Audio 1/4" L&R Input & Output, 1/8" Audio Input
• Weight 24 lbs
• Casio expect real street price to be below $1000

More info http://www.casiomusicgear.com/products/menu_privia/PX-5S