Special chips & MSU-1
Special chips and MSU-1
Some SNES cartridges shipped with extra chips to push the hardware further, and a separate standard called MSU-1 adds streamed media. The FXPak Pro supports both, which is a large part of why it stands out.
Special enhancement chips
Certain games added silicon inside the cartridge for more graphics or processing power. The FXPak Pro's FPGA recreates these chips, so titles that depended on them run accurately from the SD card without the original hardware. This is why the flashcart can claim a near-complete library rather than only the simpler games.
MSU-1 audio and video
MSU-1 is a standard the FXPak Pro implements to stream CD-quality music and even full-motion video from the SD card. Community romhacks use it to replace a game's sequenced soundtrack with recorded audio, dramatically improving the music in supported titles.
An FPGA advantage
Because special-chip and MSU-1 support live in the flashcart's reconfigurable FPGA, they work on any SNES board and region. Your console revision affects the picture quality, but not whether these enhanced titles will run.
To use MSU-1 content, you place the patched game and its audio or video files together on the SD card, then load it like any other title.