[IC] 65X2 - A split, wireless, staggered 65

[nyrex]

The 65X2 is a wireless mechanical keyboard, only split.

Details

• Split
• Wireless
• 65% layout
• ANSI, ISO, split left shift, split backspace support
• Aluminium case
• Aluminium plate
• Hotswap 1.6mm PCB (will offer soldered PCB if enough interest)
• 7° typing angle
• 20.8 mm effective keyboard height
• ZMK firmware
• 1400mah battery (~4 months life)

Group buy planned to happen early 2026. Price expected to be $700CAD ($500USD).

Please fill out the form here: https://docs.google.com/forms/d/e/1FAIpQLSenT4UTssi_jXJepDYF3TUvPfHkN_uhlBMuGEd2nEuzsP4DOw/viewform?usp=header

Development Notes

We are waiting for the delivery of the machined aluminium prototype cases. For the last few months, I have been using the board with a 3D printed case (pictures below).

Presently the board is top mounted but we are looking into softmounting and plate leaf springs. Unfortunately, tuning sound on a mostly hollow 3D printed case has been a pretty fruitless endeavor. The current development plate is meant to have more mounting options than necessary to experiment with mounting locations and will not be the final plate (pictures below).

The board presently runs on ZMK firmware but we are looking into RMK as well. Regardless, running the adafruit bootloader means it should be compatible with either and it is a trivial drag and drop over USB to change firwmare.

[HoffmanMyster]

Approval

[DirtyGingy]

As someone that uses right hand B, I sadly can't. But the project looks fun. Good luck!

[enomooshiki]

Hello!

I have some questions,

- Is the battery split into 2? 700mah each? or 1400mah each side?
- how do you charge the said batteries?
- how are two pcbs communicating?
- Is this wireless only? if so, can they be used while charging?

[adrianalston]

Hello!

I have some questions,

- Is the battery split into 2? 700mah each? or 1400mah each side?
- how do you charge the said batteries?
- how are two pcbs communicating? geometry dash lite
- Is this wireless only? if so, can they be used while charging?

From what I understand, the battery is usually split, so it’s ~700mAh per side (not 1400mAh each), but it depends on the specific build.
Charging is typically done via USB (often USB-C), either per side or through a shared charging circuit/dock.
The two PCBs usually communicate via wireless (like Bluetooth or a proprietary RF link).
Yes, most setups are wireless-only, and whether you can use them while charging depends on the design — some allow it, others disable operation during charging.