UPDATE 9-20-24:  Newly rebuilt using the awesome Crossmix v.1.2.1 as basis of build but with many improvements!
 
For Sale: One (1) loaded 1 TB micro SD card for your "TrimUI SMART PRO" handheld retro game system.  Plug the card in and start gaming.
 
I took the latest setup from the Crossmix v.1.2.1 OS and then completely improved upon the experience by adding all my own superior game libraries with beautiful game preview mixart, added 28 custom themes, custom "best of" collections, added Retroarch game cheat files, added game-specific bezel art for all Arcade, NeoGeo, SNES-MSU1 & Megadrive MSU systems, added superior system-bezels for other systems, added missing bios files, background music (varies by theme), I optimized certain systems , Marvel vs. Capcom 2 (both Naomi & Dreamcast versions) has ALL characters unlocked..... I turned it in to the very best card of its size for the TrimUI SMART PRO!  Includes a ton of Sony PSP, OpenBOR, Sega Saturn, Sega Naomi, Sammy Atomiswave, Playstation, Arcade (FBNeo/MAME-2003plus), Dreamcast, Sega CD, tons of SNES-MSU1 i.e. SNES-CD, Megadrive-MSU, among many others as listed in detail below.
 
NOTE: The file partition is accessible directly in Windows on a PC for super easy game file transfers/mods/copying/pasting.
40 awesome themes pre-installed (see photos for many). Some of the themes I added include:  8-Bit, 80's Synthwave, Billie Jean (MJ), Bloodsport, Castlevania, Crash Bandicoot, Cyber City, Cyberpunk, Diablo, Gambit, Mario, Matrix, Metroid, Mortal Kombat, Resident Evil, Retro Arcade, Sonic, Star Wars, Street Fighter, Streets of Rage, Tifa, Tiles, Tron & Zelda, as well as TRIMUI Blue, Energy & YaHei....
 
Approximately 18,100+ quality games including their game preview art (for every game) is installed. Cheats are pre-installed available through the advanced (retroarch) menu for many popular systems.
 
Below is a detailed listing of what is included with this purchase:
1 TB Sandisk (class 10) micro SD card loaded and ready to game for your TrimUI SMART PRO handheld (Note: Sandisk card(s) typically provided as pictured  but Samsung brand may be depending on my stock). No hardware is included, just the loaded (plug-n-play) sd card.  You have to have your own TrimUI SMART PRO handheld device.
 
Awesome menu background themes loaded which can be easily switched up. Most game systems allow saving game play at ANY spot within the game typical. Games can be identified as "Favorites" simply. Awesome "Best of" collections are already setup.
 
I removed "ADULT only" roms typical from default setup, but I included them (for 5 different systems - Atari2600, NES, FDS, MAME and Genesis) with their artwork in the main roms folder (not visible on device).  So by inserting the sd card into a PC, a simple copy-paste on a pc will put them all in their proper place in the rom system folders to enable/display after reboot.  Example of these type of games would be mame roms:  newfant.zip, galpanic, bigtwin, plgirls, etc..
 
NOTE:
For your convenience, I included a copy of the TrimUI Device Firmware Update v1.0.4 (from their website, with instructions) on card in a folder.  You can use it to update your device if on older stock firmware.
 
DISCLAIMER:
The software and game roms/iso’s are FREE to download (readily available on the internet) and are included at no charge to you.  Software is open-source.  You are paying for the parts & time to assemble and program/code the software.  All cards/systems are thoroughly tested before shipping.  The actual handheld gaming device is not included.