KeyMouse ChairTrack 127 - 3D Printed & Assembled (Out of Stock) Keyboard + Trackball Combined.. Product #: KM-CHAIRTRACK-127 Regular price: $725.00 $725.00

KeyMouse ChairTrack 127 - 3D Printed & Assembled (Out of Stock)

Price: $725.00

Available Options

Cherry Switch Color:
MX Brown (Default) - Tactile (55cN operating force)
MX Blue - Tactile "Clicky" (60 cN operating force)
MX Silent Red - Linear (45 cN operating force)
Key Cap Layout:
QWERTY (Default)
Blank Key Caps
Cost Saving Options:
None - Fully Assembled (Default)
Assemble Myself (No soldering required)
3D Print & Assemble Myself (No soldering required)

Our target users are those that spend pretty much all day every day at the computer.  We've developed many features specifically with this in mind.  Our primary goal is to increase user efficiency and comfort.  Here are a few of our key features:

  • Genuine Cherry MX Mechanical Key Switches
    If you're not familiar with mechanical switches, they are much higher quality than typical keyboards. Cherry keys are manufactured in Germany with high precision. They have a premium feel that lasts up to 50 million presses per key.
    For more details on the Cherry MX switches, see article: Cherry MX Switch Types

  • USB & Bluetooth Wireless Connectivity (Automatic Switching Between)
    You can decide whether to operate by USB or Bluetooth. While USB is plugged in, KeyMouse Track will use the USB interface and charge the batteries.  When you unplug the USB connection, the devices automatically switch to Bluetooth Wireless mode.

  • Fully Re-programmable Keys
    You can change the function every key and button on KeyMouse Track (including the commands for scrolling up and scrolling down on the scroll wheel for both left/right hands).  There are 6 key layers that can be saved into the devices.

  • Lithium-Ion Rechargeable Batteries (With Protection Circuit)
    When plugged into the PC via USB cables, batteries automatically charge.

  • RF Radio Connection Between Left & Right Devices
    KeyMouse devices stay in sync with each other using an RF radio signal between them.  This is important for both devices to stay in sync with each other because the computer sees them as separate devices, but they have to work together.  For example, when you press FN Yellow on the left hand, the right hand needs to switch to the FN Yellow layer, also.  Inter-device communication is also critical for functionality on some operating systems like Mac for keys like Shift, CTRL, ALT, and Command to work properly with 2 input devices working together.

  • Built in USB Hub in Each Hand
    Each KeyMouse has a USB port on the back to allow easy chaining of the devices (or plugging in another device into the back of KeyMouse).

  • Diodes on Every Key & Button for Anti-Ghosting
    Each key has it's own circuit board with a diode to prevent ghosting.

  • High Resolution 3200 DPI Mouse Sensors (Both Hands)
    You can program keys to adjust the speed/DPI of left/right or both hands.  We have many options such as adjusting speed while a key is held down (and it reverts back to previous speed when key is up), adjust speeds faster, or slower, etc.

  • Custom 3 Color Key Caps
    Our key caps have white, blue, and yellow colors on them to show the various key layers (particularly for number pad and arrows)

  • Trackball Diameter is 25.8mm

  • Trackball also functions as the Scroll on the Fn Blue layer by default.

  • "Post" buttons in the middle of YUHJ keys and RTFG keys (can be assigned as mouse click buttons).

  • Chair mount cutout is 82.5mm wide, approx. 53.5mm deep (from shortest point on curve), and 35.5mm tall.

  • Angle of "K" key (middle finger on home row) is 12 degrees side to side

  • Weight - One device (such as Right Hand Only) weighs approx. 1lb 3 oz (539 g) without the battery and 1 lb 4.2 oz (573 g) with the battery. Weights include the filler piece for the cutout area.


1. There may be minor cosmetic flaws, but the functionality should work well.
2. Does not have backlighting, and Fn Yellow and Fn Blue key layers do not match perfectly with the software, but they are very close.
3. KeyMouse ChairTrack is not painted, as there is no need for your hands to grip the device like KeyMouse Alpha.
4. For best results, trackballs need removed and cleaned every few days.
5. For dimensions, click here.


Box Contents:

  • Left and Right Hand fully assembled KeyMouse ChairTrack
  • Cutout Filler pieces (to allow desktop use)
  • 6' USB Cable (Braided)
  • 3' USB Cable (Braided)
  • Key Cap Puller
  • Extra Key Caps
  • (2) Lithium Ion Batteries
  • 3D printed trackball removal tool


Want to mount KeyMouse ChairTrack to a chair? Check out these available options: KeyMouse Chair Mounting Options

If you are unsure as to whether or not you need a KeyMouse Track or KeyMouse Chair Track, this illustration will help: Track or ChairTrack

  • 127
    • Lowered power switch for better assembly.
    • Adjusted VESA mount holes.
  • 126
    • Fixed USB port holes.
    • Lowered internal adjustable feet mounts for easier assembly.
  • 125
    • Lowered palm/wrist area near pinky finger.
  • 124
    • Updated trackball positioning.
  • 123
    • Updated trackball positioning.
  • 122
    • Updated trackball positioning.
  • 121
    • Updated trackball positioning.
  • 120
    • Updated Main PCB Protector.
    • Updated trackball positioning.
  • 119
    • Updated Main PCB Protector.
    • Updated internal wire chases for assembly.
  • 118
    • Added mount points on Track bottom housing.
    • Added more room around battery housing.
  • 117 
    • Minor updates to trackball positioning.
    • Added/removed internal wire chases for assembly.
    • Updated VESA mounts
  • 116 
    • Added/removed internal ribs.
    • Added internal wire chases for easier assembly.
  • 115
    • Lowered wrist/palm rest approx. 3mm.
    • Adjusted internal trackball mounts, etc.
    • Moved battery, On/Off switch, and Pair button to center of device to adapt for ChairTrack.
    • Added/removed internal ribs and mounts.
    • Added VESA mounting option.

1 Year Warranty (from date of purchase)
Currently we will cover any defective parts + shipping to your location.  You will be responsible to replace the parts.

Warranty does not cover any damage you cause to the devices.

Return Policy:
We will offer you a 30 day return policy from the time of delivery. If you feel like it doesn't work for you, you can return it. You will be refunded the price of the product minus a 10% product return fee. You will be responsible to pay for return shipping. It must be returned in the original packaging, include all hardware and components, and be in perfect condition, both cosmetically and mechanically.