fj laboratories

Musings, deliberations, and end results.

BKS65 — Bolsa Supply

A hotswap Tofu65 PCB — Felix Jen

Released on November 19, 2020


The BKS65 is a hotswappable PCB built around the KBDFans Tofu65 Aluminium and Acrylic cases.

The PCB supports both QMK and VIA by default and is equipped with 24 individually-controllable RGB underglow LED’s.


“Somewhere over the rainbow, skies are blue, and the dreams that you dare to dream really do come true.”

E.Y. Harburg


Certain photos courtesy of Bolsa Supply:

Technical Details

Specification Value
PCB Thickness 1.6mm
PCB Material Tg 130–140 FR4
Surface Finish ENIG – 1U Thick
Copper Weight 1oz/ft2
Soldermask Matte Black – Custom
Maximum Power Consumption 250mA
Standby Power Consumption 14mA
Overall Dimensions 303.75mm x 94.2mm
Microprocessor ATMEGA32U4-MU
Firmware Download (VIA) Download Firmware
QMK Repository Firmware QMK Github

Where to Buy

These PCBs can be purchased from Bolsa Supply and will be in stock for a limited time.