UPS (Universal Patch System) is a patch file format designed to fix the limitations of the older IPS (International Patching System) format. Unlike IPS, which struggles with files larger than 16MB, UPS handles the maximum GBA ROM size (32MB) with ease. It also supports file expansion, meaning it can turn a 4MB ROM into a 32MB one.
Before we discuss conversion, it is vital to understand the ecosystem. ups to gba converter online