How Many Save Blocks Does a Neo Geo Memory Card Have?

This article details the storage capacity of the standard Neo Geo memory card, confirming that it contains 23 save blocks. It covers the technical limitations of the hardware, compatibility between AES and MVS systems, and provides context for collectors managing game saves on this classic platform.

The standard Neo Geo memory card, used for both the AES home console and the MVS arcade system, possesses a specific storage limit defined by SNK. While the physical memory chip contains 2 kilobytes of SRAM, the system organizes this space into distinct units known as blocks. Users can utilize 23 blocks for saving game progress, high scores, and custom settings across compatible titles.

Although the raw memory might suggest a higher potential count, the system reserves a portion of the space for file management and integrity checks. This results in the widely accepted figure of 23 usable blocks per card. Different games consume different amounts of this storage; some titles require only one block, while others may consume multiple blocks to store complex data such as character stats or stage progress.

Compatibility remains consistent across most regions, meaning a Japanese memory card will function correctly in a US or European console without altering the block capacity. For retro gaming enthusiasts, understanding this limit is essential when managing multiple games, as filling the 23 blocks requires deleting older saves to make room for new data. This fixed capacity remains a defining characteristic of the Neo Geo ecosystem throughout its production life.