Hardware

PM2354 SD: A microSD cartridge for the Pokémon mini

A cartridge with a printed shell and a planned microSD game browser, building on zwenergy’s PM2040.

$1,519

pledged of $4,500 goal

26 backers

9 days to go

1 reward tiers

Back on Kickstarter ↗

About This Project

The PM2354 SD cartridge is a microSD adapter for the Pokémon mini that simplifies game loading by letting users copy .min files to a card and select them via an on‑console menu. A planned Game Boy folder will support .gb games, and Game & Watch support is under development. The cartridge uses a custom RP2354A board with independently written firmware for menu, SD loading, and emulator cores, and ships assembled with a printed shell. Shipping is buyer‑paid after the campaign, with delivery estimated for December 2026.

Key Highlights

 ▸ Simple drag‑and‑drop game loading via microSD, no need to patch UF2 per game. 

 ▸ Supports Pokémon mini .min files with planned Game Boy .gb folder and ongoing Game & Watch support. 

 ▸ Assembled cartridge with printed shell, firmware pre‑installed and tested before shipment. 

Technical Specs

Spec	Details
Price	$59
Estimated delivery	December 2026
Reward quantity	90 cartridges
Target platform	Pokémon mini
Supported formats	.min (Pokémon mini), planned .gb (Game Boy)
File system	FAT32
Board MCU	RP2354A
Connection	USB-C for firmware updates

Reward Tiers

backers

Assembled PM2354 SD cartridge + shell

USD59

~$59 USD

One assembled PM2354 SD cartridge in a printed shell with pre‑installed firmware and console testing. Console, microSD card and USB‑C cable not included; no ROMs supplied. Shipping charged separately worldwide.

Risks & Challenges

The custom RP2354A board and its independently written firmware still require integrated testing; passing build and host tests does not guarantee console operation. Timing, power, thermal behavior, game loading and save recovery must be validated on assembled hardware, and the shallow card‑edge bevel needs factory confirmation. Assembly time, production yield, and shipping estimates remain provisional.