Circuit Boards (PCB)

A PCB in a keyboard is a thin board made of composite epoxy, fiberglass, or other laminate material. Copper tracks are etched onto this board, forming the circuit which registers your key presses.

PCBs in keyboards come in various layouts and offer distinctive features. This guide will help you understand what to look for and how to choose the right PCB for your custom keyboard project.

Types of PCBs

Layout

• Standard PCBs: Common layouts like ANSI and ISO
• Custom PCBs: Unique layouts for specialized builds

Hot-swappable vs. soldered

• Hot-Swappable: Allows you to change switches without soldering
• Soldered: Requires soldering switches onto the PCB, offering a more permanent solution

Key Features to Consider

• Layout Compatibility: Ensure the PCB fits your desired keyboard layout (60%, TKL, Full-Size, etc.)
• Switch Compatibility: Some PCBs are designed for specific types of switches (MX-style, Alps, etc.)
• Backlighting Options: RGB or single-color LED support for backlit keyboards
• Connectivity: USB-C, Micro-USB, and wireless options
• Programmability: Ability to reprogram key functions and macros