This is a Yamaha CS6X in great condition. Everything works and there is no cosmetic damage beyond the expected wear and tear. Comes with power cable and gig bag. There are two missing cap buttons.

Per Yamaha:

"Today’s music production demands a versatile synthesizer that’s capable of
producing fresh cutting-edge sounds that have never been heard before.
Introducing the CS6x and CS6R—stylish synthesizers
made for the next generation of electronic dance music.
These synths give you the power to transform your musical ideas into reality
by providing a huge selection of incredibly fat onboard voices, from all the essential
standards to funky acid basses, massive analog pads and floor-pounding drum kits.
But that’s not all. The CS6x and CS6R also feature sampling capability,
so you can create your own rhythm loops and sample phrases
and use them in your music. And for the tweak freak in you, the CS6x sports
19 parameter knobs for endless realtime sound creation and control.
Need more power than that? No problem. Both of these synthesizers
can accommodate Yamaha Modular Synthesis Plug-in System Boards,
allowing you to add new synthesis possibilities,
from FM synthesis to physical modeling, easily and cost-effectively.
Discover the new CS6x and CS6R from Yamaha.
Creative tools for the next generation of music.
Plug ’em in. Turn ’em on. Create chaos."

Specs:

FUNCTIONS
Keyboard 61 Keys, Initial Touch/Aftertouch (CS6x)
Tone Generator AWM2
Multitimbres 16 + 1 (A/D) + 1 (Phrase Clip) + 2 (Plug-in)
Polyphony 64 Notes
Effects Reverb: 12
Chorus: 23
Insertion Effects: 92
Insertion Effects for Plug-in Boards: 24
Master Equalizer: 4
Voice Preset Bank normal: 256, drum kits: 8
User Bank normal: 128 (Internal) + 128 (External)
drum kits: 2 (Internal) + 2 (External)
Plug-in 1, 2 User Bank normal: 64 (Plug-in 1), 64 (Plug-in 2)
Performance User Bank 128 (Internal) + 64 (External)
4 zones per master keyboard setting (CS6x)
20 Parts
(16 + Plug-in 1 + Plug-in 2 + A/D + Phrase Clip)
*Part Layers: Max. 4
Scene 2 Memories per Voice /Performance (CS6x)
Phrase Clip Memory 4 MB (volatile)
Clips 256
Clip Kits 4 (73 keys x 4 sets)
Sampling Freq. 44.1 kHz, 16-bit Linear
Arpeggiator 128 Types (MIDI Sync, MIDI TX/RX, Play Effect)
Sequencer SMF Playback (Format 0) Direct Play Only
Expandability 2 Slots for Plug-in Boards
EXTERNAL MEMORY
Card SmartMedia™ 3.3V
CONTROLLERS
Pitch Bend Wheel (CS6x)
Modulation Wheel (CS6x)
Ribbon Controller (CS6x)
Sound Contol Knob x 14 (CS6x)
Master Volume Knob
Assignable Knob x 5
Data Entry/Page Knob x 2
A/D Gain
CONNECTORS & TERMINALS
OUTPUT: L/MONO, R (1/4" Jack)
INDIVIDUAL OUTPUT 1, 2 (1/4" Jack)
BREATH CONTROLLER
FOOT VOLUME (CS6x)
FOOT CONTROLLER (CS6x)
SUSTAIN (CS6x)
FOOT SWITCH (CS6x)
MIDI: IN/OUT/THRU
TO HOST: Mini Din
PHONES: Stereo 1/4" Jack
A/D INPUT: MIC/LINE 2, LINE 1 (Stereo 1/4" Jack) *Analog Mix Mon