GameCube Phob Drop-In Board

April 6 update:
We are currently out of stock and waiting on more Phob boards to arrive. Sorry for the inconvenience!
- from The Battle Beaver GCC Team

DIY fully assembled Phob board installation kit. Only a triwing screwdriver is required. Simply "Drop in" the board into your controller in place of your current board.
The Phob board comes equipped with hall effect analog sticks in place of the OEM physical contact carbon potentiometers prone to normal wear and tear. Powered by the RP2040, Phobs offer advanced users performance tuning features through sophisticated button commands.

For help in getting the most out of your Phob GameCube controller,
visit our Phob Controller Calibration Guide

Details:

2.0.5 Phob Motherboard and C-Stick Daughterboard
Firmware Version 0.31
OEM T3 Stickbox Mechanisms w/ D12 Underslung Mounted Magnets
OEM Alps Triggers "Black Slider" Potentiometers
"Star Paddle" Trigger Boards
OEM Rumble (optional) w/ Bracket
OEM 2-Meter Paracord Cable*
Pre-Calibrated Analog Sticks (using a new Smash Ultimate Black controller for reference)

*Will include the Indigo cable-end plug color by default with best available condition.

Full Parts Kit Add-On:
Included OEM parts are refurbished from lightly-used OEM controllers with best available condition. A Phillips-head screwdriver is required for trigger assembly installation. Screws NOT included.

ABXYZLR
D-Pad
Start
Thumbstick
C-Stick
L & R Trigger Assembly
BB Blue Rubber Contact Pad Set
Spare D12 (Thin) Underslung Mounted Magnets

We recommend advanced users recalibrate their analog sticks once fully installed. Information and complete guide provided.
NOTICE: Mayflash GCC adapters are NOT recommended. Please use either 1st party Nintendo, GC Pocket+, or Lossless GCC adapters for best results.

PhobGCC is an ongoing open-source project brought to the GameCube Controller modding community by the PhobGCC team.
Full Documentation can be found on their Github