Prime_E Rev 2 RGB PCB
Best foundation for enthusiasts building a custom ergonomic compact keyboard.
Build your dream ergonomic keyboard with the Prime_E Rev 2 RGB PCB. This 45% compact layout is designed for comfort and efficiency, featuring addressable RGB under glow lighting for a personalized aesthetic. It comes fully assembled and pre-flashed with QMK/VIA compatibility, making firmware customization straightforward. The PCB ensures reliability with built-in ESD protection and maintains compatibility with the original Prime_E case and select third-party enclosures, providing a solid foundation for your custom build.
$40.00
Owner Satisfaction
4.7
/ 5
Category Rank
28
/ 1543
#28 in Development Boards
Price vs Category Average
-54%
Below average
Layout
45
/ Ergo %
Who it's for
- Custom keyboard enthusiasts seeking personalized lighting aesthetics
- Users wanting intuitive and flexible keymap programming
- Minimalists looking to reclaim valuable desk real estate
Who should skip it
- Typists accustomed to full-size layouts and dedicated keys
- Beginners lacking soldering tools or technical experience
- Shoppers needing immediate availability and reliable stock
Performance breakdown
Firmware Flexibility
QMK and VIA support makes keymap customization effortless for any user.
Ergonomic Layout
The 45% split design promotes natural wrist alignment during extended typing.
Build Reliability
Integrated ESD protection provides essential peace of mind for custom builds.
Aesthetic Customization
Addressable RGB underglow offers vibrant lighting options for a personalized look.
Setup Simplicity
Pre-flashed firmware allows for a true plug-and-play assembly experience.
Hardware Compatibility
Maintains solid support for Prime_E cases but limits broader enclosure options.
Key Specs
Layout
Ergo 45%
Connection Interface
USB-C
Lighting
Addressable RGB under glow
Firmware
QMK/VIA compatible
Microcontroller
Raspberry Pi RP2040
Form Factor
Compact
Power Source
USB
Programming Interface
Bootloader via USB
Features
- Ergonomic 45% compact layout
- Addressable RGB under glow lighting
- QMK/VIA compatible firmware
- Fully assembled and pre-flashed
- USB-C connectivity
- ESD protection included
- Compatible with Prime_E cases
What customers say
The Prime E Rev 2 PCB earns high praise as the essential, quality foundation for the popular 40 percent ergonomic build. Customers consistently highlight its robust compatibility, especially the seamless integration with QMK and VIA for deep layout customization. A major draw is the improved aesthetic and functional upgrade provided by the vibrant per-key and underglow RGB lighting. Users report excellent build quality, noting clean soldering and reliable performance right away. While the initial firmware setup can challenge newcomers, enthusiasts find the investment worthwhile due to the specialized features and dependable operation. This PCB is celebrated as a top tier solution perfectly meeting the needs of its demanding niche market.
Know before you buy
Yes, the Rev 2 PCB is designed to maintain compatibility with the original Prime_E case, as well as many third-party enclosures designed for that specific layout.
Absolutely. The board comes pre-flashed with QMK/VIA compatibility, allowing you to remap keys and adjust your layout in real-time without needing to recompile firmware.
This PCB features addressable RGB underglow lighting. You can customize the colors and patterns to match your setup through the QMK/VIA interface.
No, the Prime_E Rev 2 arrives fully assembled and pre-flashed. It is ready to be installed into your case and connected to your switches immediately.
This revision is powered by the Raspberry Pi RP2040 microcontroller, which offers reliable performance and broad support for custom firmware features.
Yes, the board is built with integrated ESD protection to help safeguard your components from static discharge during daily use.
Still have a question?
Ask Hayley anything about this product before you decide.
Ready to buy?
$40