RTC Cart For GBA

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RTC Cart For GBA

ChisFlash V1.1 RTC Edition is an open-source retro flash cart with dedicated RTC hardware, crafted for time-based GBA games to deliver accurate in-game clock and stable permanent saves.

RTC1Mbit FlashOfficial Product
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Intorductions

Tailored for classic GBA titles with time-dependent mechanics, the ChisFlash V1.1 RTC Edition is a professional open-source flash cart built with dedicated real-time clock hardware. It delivers stable, lag-free gameplay, permanent accurate in-game time, and reliable save data, perfectly restoring the authentic gaming experience of classic GBA games on original hardware.

✨ Key Features

  • Built-in Precision RTC Chip: Equipped with S35190 real-time clock module, providing accurate continuous in-game time without time drift, fully supporting all RTC-triggered game events and hidden content.
  • Large 256Mbit (32MB) Flash Storage: Ample space to store multiple GBA game ROMs and save files, eliminating frequent cartridge switching and meeting daily retro gaming needs.
  • 1Mbit Stable Flash Save Memory: Adopts high-reliability flash memory for game saves, ensuring long-term data retention, no sudden save corruption or data loss.
  • Full Console Compatibility: Perfectly compatible with all original GBA series devices, including GBA, GBA SP, GB Micro, DS, and DS Lite, as well as Game Boy Player.
  • Premium Industrial-Grade Build: Features ENIG gold-plated PCB for stronger stability, anti-oxidation, low power consumption, and durable long-term use.
  • Open-Source Reliability: 100% open-source hardware and firmware design, mature and stable solution optimized based on the chisflash project.

📌 Version Core Advantages

The V1.1 RTC version focuses on time-sensitive GBA masterpieces. It solves the core pain point of ordinary flash carts (lack of real clock function) and supports all time-based game mechanisms, such as daily events, time-exclusive items, and seasonal content unlocks.

Most Suitable Games: Pokémon series (day/night cycle, time-based evolution & events), The Legend of Zelda series, Boktai solar induction games, and all RTC-dependent GBA titles.

📊 Full Specifications

  • Main Storage: 256Mbit (32MB) High-speed Flash Memory

  • Save Memory: 1Mbit Flash Memory (long-term stable save storage)

  • Core Special Function: S35190 Real-Time Clock (RTC)

  • Compatibility: GBA / GBA SP / GB Micro / DS / DS Lite / Game Boy Player

  • PCB Process: ENIG (Electroless Nickel Immersion Gold) anti-oxidation gold-plated board

  • Power Supply: CR1616 battery (service life up to 3–4 years)

  • Power Consumption: Ultra-low power draw (only 5–10mA, lower than official original cartridges)

🎯 Target Users

Retro game collectors, Pokémon & Zelda series fans, players who pursue authentic original game experience, and open-source hardware enthusiasts.

🛒 Why Choose ChisFlash V1.1 RTC Edition?

  • ✅ True hardware RTC (not simulated software clock), 100% restore official game time logic

  • ✅ Open-source solution, safe, stable and no hidden bugs

  • ✅ Zero-loss save data, permanent retention without frequent battery replacement

  • ✅ Full compatibility with original official consoles, no frame drop or crash

Note: This is a third-party open-source rewritable flash cart. Game ROMs are not included.