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Best Nintendo DSi Flash Carts in 2024

Disclaimer: Flash carts exist in a legal gray area. **Only use for homebrew, backups of games you physically own, or development.** Piracy is illegal and harms developers.

The DSi/3DS flashcart scene has consolidated. **DSi-mode** (access to DSi cameras, SD slot, extra CPU) requires specific cards. **3DS-mode** (playing 3DS ROMs) requires different cards (and CFW on console). Most modern cards are "dual-mode."

Top Current Recommendations

Card	Modes	Pros	Cons	Approx. Price
R4i-SDHC 3DS RTS (Gold Pro / Dual Core)	DSi / 3DS (via ntrboot)	Cheap, easy Wood/R4iMenu kernel, Real-Time Save (RTS), cheat support, microSDHC/SDXC.	Frequent kernel updates needed for new 3DS firmware; clones common (buy from nds-card.com, modchipsdirect.com).	$15–$25
Ace3DS X / Ace3DS+	DSi / 3DS (ntrboot)	Good compatibility, clean UI, RTS, cheat DB, often better build quality than R4 clones.	Slightly pricier; kernel updates slower than R4i.	$20–$30
Supercard DSTWO Plus	DSi / 3DS (ntrboot) + GBA/SNES emu onboard	Onboard CPU → Excellent GBA/SNES emulation without 3DS CFW. RTS, Free Cheat, PDF/TXT reader.	Expensive ($40+), drains battery faster, bulky, kernel updates very slow (dev inactive).	$40–$60
R4i Gold 3DS Plus (r4ids.cn)	DSi / 3DS (ntrboot)	Official Wood R4 kernel support, very stable, ntrboot magnet included for 3DS hacking.	Only DSi-mode for DS games; 3DS ROMs require console CFW (which this card helps install).	$18–$25

Critical Buying Advice

Buy ONLY from trusted resellers: nds-card.com (official reseller for many), modchipsdirect.com (US), 3ds-flashcard.com (EU). Amazon/eBay are flooded with fakes/timebombs.
"Timebomb" Kernels: Older R4/Ace3DS kernels stop working after a hardcoded date. **Always flash latest kernel (Wood, YSMenu, TWLMenu++) from the *reseller's* site before use.**
3DS ROMs: **No flashcart plays 3DS ROMs directly on stock firmware.** You must install **Custom Firmware (CFW)** on the 3DS/2DS itself (via 3ds.hacks.guide). The flashcart (via ntrboot) is just the *tool* to install CFW. Once CFW is installed, you play 3DS games installed to SD Card (CIA) — no flashcart needed for daily play.
DSi Enhanced Games: Only DSi-mode carts (all above) play DSi-exclusive titles (e.g., Pokémon Black/White DSi features, System Flaw).

Best All-Rounder (2024): R4i Gold 3DS Plus (r4ids.cn) + install CFW on 3DS via ntrboot → Play everything from SD Card. Keep cart for GBA/SNES emu? Get DSTWO+ if you find it cheap.

Nintendo DS