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SummerCart64 Flash Cartridge 4TG – 64DD Emulation & SD Card Support - Nintendo 64

SummerCart64 Flash Cartridge 4TG – 64DD Emulation & SD Card Support - Nintendo 64

£49.99
£49.99
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4 in stock

Specifications:

  • Standard Version: Uses the 4TG FPGA chip for strong compatibility and speedy loading times.
  • Storage: 64 MiB SDRAM for game ROMs, 16 MiB FLASH memory for bootloader & extended data
  • Save Support: Automatic EEPROM (4k/16k), SRAM, and FlashRAM save writeback
  • 64DD Emulation: Play 64DD games without additional hardware
  • Real-Time Clock (RTC): Battery-backed RTC for time-based events
  • High-Speed Data Transfer: Up to 23.8 MiB/s via USB & SD
  • Homebrew & Debugging: UNFLoader and IS-Viewer 64 debug interface support
  • Plug-and-Play: No custom firmware required; fully open-source design

Nintendo 64 Flashcart Comparison

Feature

SummerCart64

ED64 (Clone) (e.g., “ED64 Plus”)

EverDrive-64 X7 (Krikzz)

64DD support

Built-in hardware emulation. Runs raw 64DD disk images, including cart+disk combos and multi-disk.

No hardware emulation. Some units run 64DD cart-conversion builds only; results vary by firmware/model.

No hardware emulation. 64DD play typically requires cart-conversion builds, not raw disks.

Load speed

~23.8 MiB/s over microSD and USB-C.

Varies by clone; not consistently published.

“Fast loading” up to ~23 MB/s.

Max ROM / working RAM

64 MiB SDRAM + 16 MiB QSPI (2 MiB reserved) → effective up to ~78 MiB ROM coverage.

Typically 64 MiB (depends on revision).

64 MB SDRAM.

Save handling

Automatic write-back during gameplay (no reset ritual).

Many clones require pressing RESET to back up saves to SD.

Save without reset (auto-backup).

Supported save types

EEPROM 4k/16k; SRAM 256k / 3×256k / 1 M; FlashRAM 1 M.

Common N64 save types supported; behavior differs by firmware.

EEPROM 4k/16k; SRAM; FlashRAM; RTC.

Region/CIC

UltraCIC-based, auto NTSC/PAL; can boot from 64DD IPL.

“Multi-CIC compatible” claims vary by vendor; behavior differs.

UltraCIC III with auto region.

microSD support

microSD, cards up to 2 TB supported.

Many limit to SD/SDHC (≤32 GB); varies by unit.

microSD/SDHC commonly used; capacity support depends on OS version.

Open-source

Yes (GPLv3) hardware/firmware/menu.

No (proprietary clones).

No (commercial/closed).

Built-in / menu emulators

Launches GB/GBC/NES/SNES emulators via the flashcart menu (run on N64).

Community menus exist; emulator support varies by firmware.

Built-in .nes support; additional emulators via menu folders.

 

Description

The SummerCart64 is a high-performance Nintendo 64 flash cartridge designed for seamless ROM loading, save management, and 64DD emulation. This open-source solution is perfect for retro gaming enthusiasts, offering full game compatibility and real-time save functionality. Whether you're looking to play your favourite N64 titles from an SD card or dive into the 64DD game library, the SummerCart64 delivers a premium experience at an affordable price.

With 64 MiB SDRAM for instant game loading, real-time clock support, and high-speed SD data transfers, this flash cart is built for gamers and developers alike. Unlike other solutions, the SummerCart64 automatically saves progress without requiring a reset, and supports various save types including EEPROM, SRAM, and FlashRAM.

Whether you're a collector, homebrew developer, or casual player, the SummerCart64 flash cartridge provides an affordable, feature-rich alternative to expensive N64 backup devices.

Package Includes

  • 1 x SummerCart 64 (4TG)
  • 1 x 8GB SD Card
  • USB SD Card Adapter
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