DSPico: the first open source flash cartridge for Nintendo DS is available for €20, and it changes everything
Updated (April 4, 2026): The DSPico is now available pre-assembled from two independent resellers. Phenom Mods at $20 and Laser Bear Industries at $30. These versions are produced by third parties (which the open source project naturally allows), not by the NHL team itself.
The flash cartridge scene for Nintendo DS has remained stagnant for years. R4s, AceKards, and other commercial cards dominated the market, closed, opaque, sometimes abandoned overnight by their manufacturers. In November 2025, the LNH Team collective changed the game with DSPico: the first fully open source flash cartridge for Nintendo DS and DSi. And at the beginning of April, it is now available from several manufacturers.
🔧 What makes it unique: everything is open
The word “open source” is often overused in hardware. Not here. The NHL team released absolutely everything: electronic schematics, firmware, software, 3D casing files, even artworks. Do you want to build your own? The files are there. Do you want to improve the firmware? The code is there. Do you want to modify the case? The CAD files are there.
It's fundamentally different from classic commercial cartridges: even if NHL Team disappears tomorrow, the project will continue to live and be maintained by the community. It’s real preservation.
⚡ The heart: a Raspberry Pi RP2040
The DSPico is built around the microcontroller RP2040, the Raspberry Pi chip found in the Pico. This choice is not trivial: it guarantees long-term availability of components, a large community of developers who already know the platform, and the possibility of adding features via external devices on the integrated development port. style="user-select: auto;">Technically, it goes like this:
- Slot MicroSD, FAT32, compatible up to 128 GB (large volumes being stabilized)
- Port USB-C,to copy files directly from the PC without taking out the SD card
- SD reading speed: 6 MB/s sequentially, fast for DS content
- Consumption: ~57 mW, less demanding than most alternatives
- Dual power supply: USB or directly from the console e via an intelligent ORing circuit
- Double LED indicator
- Purple PCB, recognizable at first glance
🎮 Pico Launcher & Pico Loader, the interface that goes with
The DSPico comes with two in-house software tools:
- Pico Launcher, the main browsing interface. Fast, clean, customizable. Compatible also with other flash cartridges existing on the market.
- Pico Loader, the loading engine. Handles ROMs, saves (read/write to SD card exactly like a real cartridge), and DSi mode.
Saves work like on real hardware, no save states like some GBA cards, but save files are directly accessible on the SD in the folder of your choice.
💎 The thing no one else does: DSiWare support
This is where DSPico really makes the difference. On DSi and 3DS, it supports DSiWaregames, these titles which only existed dematerialized on the Nintendo DSi Shop, closed since 2017. It is to date the only flash cartridge capable of running them. Pour les collectionneurs et préservateurs, c'est immense : des dizaines de jeux qui auraient autrement disparu à jamais sont maintenant accessibles sur hardware original.
🛒 Où l'acheter, et la nouveauté d'avril
Several manufacturers now offer pre-assembled versions:
- AliExpress, ~$20 with 8GB SD card included. The most accessible option.
- Kaico Labs, professionally manufactured version, PCB verified, international shipping.
- LaserBear (new, April 1, 2026), $30, injected case, holographic label, choice between gray or transparent. The gray is in stock immediately, the clear in a month.
- Phenom Mod, another reseller with its own version.
You can also build it yourself from the project's GitHub files if you have the soldering skills.
📱 Compatibility
The DSPico works on:
- Nintendo DS and DS Lite (classic DS mode)
- Nintendo DSi (DS + DSiWare mode)
- Nintendo 3DS and 3DS XL, 2DS (in DS/DSi mode)
It can't run native 3DS games, it's a DS cartridge, not a 3DS hack tool.
⚖️ And Nintendo in all of this?
⚖️ And Nintendo in all this?
auto;">The open source nature of DSPico is perhaps its best protection. Closed commercial flash cartridges have clearly been in Nintendo's crosshairs for years. A community-based, transparent, documented project, without built-in decryption and whose source code is public is much more difficult to attack legally, even if no case has yet been tested in court. style="user-select: auto;">For preservation and homebrew, this is clearly the most interesting tool the DS scene has produced in a long time.
Sources: lnh-team.org, RetroRGB, Time Extension, NotebookCheck