For Sale:  One (1) loaded 512 GB micro SD card for your Anbernic RG552 handheld retro game system & ALSO includes one (1) 32 GB card for the TF1 slot (they work together and sold in pairs).  Plug them both in to your RG552 and start gaming - uses Linux side of device, not Android side!  These are plug n play.  I took the latest "Amber Elec" (v.2022-06-27) for the RG552  which works great, added my superior game libraries with full menu art, added 55 ports using PortMaster, plus 8 doom ports, added 17 awesome themes, custom collections, added missing bios files, I optimized certain systems for this firmware,… I turned it in to the very best card set for the RG552 of its size (for Linux side of device).  AmberElec has a built in online updater using WIFI so you should be able to easily update from the system in the future if you desire.  Includes Saturn, 3DO, NDS, Sega Naomi, Sammy Atomiswave, Playstation, PSP, Arcade (FBNeo/MAME-2003plus), Dreamcast, Sega CD, SNES-MSU1, among many others as listed in detail below.
 
NOTE:  The games partition (on larger card) is accessible directly in Windows on a PC for super easy game file transfers/mods/copying/pasting (nice benefit of RG552).
17 awesome themes pre-installed.  Also I fixed many features of the themes to have proper artwork, etc.
The preloaded themes include:  AmberNX, Carbon, CRTCabBlast-Tifa, Crystal, Elephant-Mosquito, Epic-Cody, Epic-Szalik, Epic Fossil, Art-Book-Next, Hypertocera-TMCTV, MetroidSpin, Minimal-customized (added backgrounds to choose), NES-Box, Soleus, Switch-custom, SR-Cyber-City & SR-Piranha-Plant.
 
Approximately 21,500+ games including their game artwork and gamelists in the roms directory are installed. Games have video snap previews, 3D boxart, and wheel (header) art typical. Cheats have been pre-installed available through the retroarch menu for many popular systems.
Below is a detailed listing of what is included with this purchase:   
512 GB Sandisk (class 10) micro SD card loaded and ready to game (for TF2 slot) and ALSO a 32 GB micro SD card for the TF1 slot - for your Anbernic RG552 handheld (Note:  Samsung (EVO Select)) card(s) may be provided instead of the Sandisk brand depending on my stock).  No hardware is included, just the loaded sd cards and a tip sheet.
 
Games have video previews that play too as you scroll down through the game list on each system except some of the older computer based systems.  Awesome menu background themes loaded which can be easily switched up.  Games allow saving game play at ANY spot within the game typical. Games can be identified as "Favorites" simply.   Awesome "Custom Collections" are already setup and can be modified. The Arcade Favorites collections have hundreds of the best arcade games (from the thousand+ on system).  Superior Arcade and Mame set, all with boxart and preview videos.  I setup game-specific bezel (sideart) to be displayed for over 200 of the best "vertical" arcade games (looks much better for games like Donkey Kong or Tron - see photo).
 
I left about 1.5 GB free space on the larger sd card available for smooth operation. 
This micro SD card has the following systems on it, and I list the approximate game count below:
System - approx. # Games Installed:
ALL - ~21,500+ games
 
Arcade (FBneo) - 1816  
MAME (Arcade) – 365
Atomiswave – 20
Naomi - 96
Daphne - 13
3DO - 17
Amiga - 646
Amiga-CD - 93
Amstrad CPC - 114
Atari 800 - 31
Atari 2600 - 617
Atari 5200 - 96
Atari 7800 - 58
Atari ST - 305
Atari Lynx - 83
ChannelF - 30
Colecovision - 141
Commodore 64 - 5217* (no video previews)
Intellivision - 136
MSX - 642
MSX2 - 100
PC Engine - 290
PC Engine-CD - 37
PC-FX - 1
SuperGrafx - 5
TurboGrafx16 - 94
TurboGrafx16-CD - 34
Famicom - 386
Famicom Disk System (FDS) - 128
Nintendo (NES) – 784
    Includes NES Hacks in submenu - 694
Super Nintendo (SNES) – 1034
    Includes SNES Hacks (55), Satellaview & Translations in submenus
SNES-CD (MSU1) - 25
Super Famicom - 509
Sufami Turbo - 15
Nintendo 64 (N64)  - 322 
    Includes N64 Hacks (20)
Virtual Boy - 25
Gameboy - 557
Gameboy Color – 572
    Includes GBC Hacks in submenu
Gameboy Advance – 1106
     Includes 25 SGB (Super Game Boy) games in submenu
    Includes GBA Hacks in submenu
Nintendo Game & Watch - 52
Nintendo DS (NDS) - 292
Pokemon Mini - 22
SG-1000 - 68
Sega Master System - 277
Sega Genesis - 993
   Includes Genesis Hacks (209) & Translations in submenu
Sega MegaDrive (Japan) - 191
Sega CD - 92
Sega Genesis 32x - 32
Sega Dreamcast - 147
Sega Saturn - 34
Sega Game Gear - 259
Neo Geo - 140
NeoGeo Pocket - 9
NeoGeo Pocket Color – 40
Odyssey2 - 85
OpenBOR - 127
Sony PlayStation 1 (PSX) - 447
Sony PSP - 121
Sony PSP Minis - 200
Supervision (Watari) - 44
Vectrex – 24
Wonderswan - 110
Wonderswan Color - 89
X68000 Sharp – 100
ZX Spectrum Sinclair - 182
 
Doom style Ports - 8 (Including Brutal Doom, Doom, Doom II, Heretic, Hexen, Strife, The Plutonium Experiment & TNT Evilution)
 
EasyRPG - 9
Solarus - 8
 
Other Ports - 55 games (and I setup menu art for all!... most of the PortMaster Library preloaded including some gems - see pics)
 
ScummVM - 13