You cannot replace the physical memory within the TRX7 hardware.
However, you CAN add a microSD card to expand the memory on the TRX7. Class 10 microSD cards up to 32GB are currently compatible with the TRX7 for storing files, including photos and music.
- DO NOT use any microSD cards larger than 32GB. Using cards that are larger than 32GB may result in data loss.
- TRX7 supports FAT16/FAT32 and cannot guarantee exFAT.
Note: The TRX7 does not currently accept external map data or GPX files from a microSD card installed directly into the unit. This functionality is will be implemented in an upcoming software update.