Sinc Rev. 4 PCB Kit - Split Staggered 75%/TKL Keyboard

$84.99 $84.99 Sale Save

Split 75% keyboard with optional 2x5 macro section. Now featuring hotswap sockets, so just pop in your switches, and you are good to go!

Don't want to build this keyboard yourself? No problem, check out the pre-built Sinc keyboard.

  • MX Hotswap sockets
  • Option for rotary encoders at top-left and top-right corners (non-hotswappable)
  • ANSI support by default, but Enter area can be converted to support ISO Enter by relocating 2 hotswap sockets (We do provide a service option for this conversion), see Build Guide section below
  • Options for split ISO left shift, split backspace, and split right shift
  • Layouts supported: KLE link
  • Macro section on left half can optionally be broken off
  • In-switch RGB LEDs pre-installed
  • USB-C port
  • Compatible with MX-style switches only
  • RP2040 MCU integrated on-board
  • Per-key RGB LEDs for each switch
  • 8 RGB underglow LEDs on each half
  • Left half PCB
  • Right half PCB

Sinc Hotswap Build Guide

ISO Enter Support Conversion: To convert the board to support ISO Enter, you'll need to desolder/resolder two of the hotswap sockets. See the build guide for additional details.

This keyboard uses the popular open-source QMK Firmware with VIA enabled out of the box to allow you to remap all the keys just the way you want them.

Plug your keyboard in, open up the VIA app, and easily change what each key does to get the most out of your keyboard with your customizations! More info on what you can do here: VIA Usage Guide

Rev. 4 vs. Rev. 3 PCBs:

  • Added VBUS circuit for more reliable keyboard startup of each half when booting or waking up your computer
  • Added a couple more layout options at thumb keys on the bottom row

Case Design Files

Files available on GitHub

Default Keymapping

The default keymapping that the board is pre-programmed with can be found here: Default Keymaps

Customer Reviews

Based on 4 reviews
Great board, great customer service

The board was easy to build with the instructions on the Keebio YouTube channel, and customer support was very fast and helpful when I accidentally bought the wrong plate for the PCB I ordered.

Caleb G.
Fantastic Board

Have been loving my Sinc for the past week or so. Fairly easy to build and looks great. I'm planning on trying it with a 3d printed case, but I've been loving the bare look to the point I don't know if I'm going to use it in the long run. (Boba u4t switches; Drop + Matt3o MT3 Susuwatari keycaps; DEADLINE studio - DOYS for macros keys)


Excellent, easy to build, easy to use


Easy to assemble and worked without any issues