It's time to clear out many of my new, duplicate devices I have so here is this gem!  Shipping is included to within USA only (no outside USA orders on this listing please).  Ships from Raleigh, NC USA.
 
For Sale:  Powkiddy RGB10 Handheld (Black color) as pictured in 1st two photos.  Other photos show same card running on a different device.  Includes my brand new 512 GB ArkOS card as described below:
 
Card Info:
I added my superior game libraries with full menu art, added custom bezels for over 200 of the best VERTICAL Arcade games, added awesome ports with PortMaster, added/fixed tons of themes, tons of custom collections, added missing bios files, background music (can be turned off or switched out easily), I optimized certain systems , I added overlays for Vectrex… I turned it in to the very best card set for the RGB10 of its size. Includes tons of SNES-CD (i.e. SNES-MSU) and Megadrive MSU, Sega Naomi, Sammy Atomiswave, Playstation, Arcade (FBNeo/MAME-2003plus), Dreamcast, Sega CD, among many others as listed in detail below.
 
NOTE: The games partition is accessible directly in Windows on a PC for super easy game file transfers/mods/copying/pasting.
35 awesome themes pre-installed. Also I fixed many features of the themes to have proper artwork, etc.
All themes were fixed to properly display all systems. Some of the themes I added include: Epic Szalik, Epic-Cody, Epic Noir, Farfenkugell-Crystal, SagaBox, Nes-Box, CRTCabBlast-Rogue, CRTCabBlast-Tifa, Carbon, Cody-DarkTeck, Cody-Flux, Crazyboy, Farfenkugell_Lazy, Floyd, Freeplay, GBZ35_Mod, Sonic-Spin, Metroid-Spin, SagaArtBook, SagaParagon, SagaSLice, SagaWorld, Switch, Minimal-fixed (with lots of custom added selectable backgrounds), zSR-Cyber-City, zSR-Mario, zSR-Metroid, zSR-PiranaPlant, zSR-Ryu, zSR-Sonic, zSR-Tifa & zSR-Tifa2.
 
Approximately 37,000+ quality games including their game artwork and gamelists in the roms directory are installed. Games have video snap previews, and boxart/mixart typical. Cheats are pre-installed available through the retroarch menu for many popular systems.
 
Below is a detailed listing of what is included with this purchase:
RGB10 (Powkiddy) Handheld (black color) with 512 GB Samsung micro SD card, loaded and ready to game.
 
Games have video previews that play too as you scroll down through the game list on each system. Awesome menu background themes loaded which can be easily switched up. Most 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). Vectrex has awesome transparent overlays that I added which are missing on most systems.
 
I removed "ADULT only" roms typical from default setup, but I included them (for 16 different systems) with their artwork in the main roms folder (not visible on device).  So by inserting the 512 GB 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.  The "gamelists.xml" files are already setup for them to be added.  Example of these type of games would be mame roms:  newfant.zip, galpanic, bigtwin, plgirls, etc..
 
I left about 1.8 GB free space on the micro 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 - ~37,000+ games
 
Arcade Systems:
-Arcade (FBneo) - 1835
-Atomiswave – 17
-MAME (Arcade) – 318
-Naomi - 76
-Neo Geo - 140 (also listed below in consoles)
 
Computers:
-Amiga - 1,956
-Amstrad CPC - 2,975
-Atari ST - 2,546
-Atari800 - 3,074
-Commodore 64 - 5,885
-MS-DOS - 85
-MSX - 635
-MSX2 - 100
-NEC PC-98 - 36
-TI-99 - 90
-Sharp X1 - 48
-Sharp X68000 – 117
-VIC-20 - 174
-ZX Spectrum Sinclair - 4,524
 
Consoles & Misc Engines/Ports:
-3DO - 18
-Amiga-CD32 - 93
-Amstrad GX4000 - 26
-Atari 2600 - 617
-Atari 5200 - 96
-Atari 7800 - 58
-Astrocade - 43
-Channel F (Fairchild) - 30
-Colecovision - 141
-Dreamcast (Sega) - 103
-Dreamcast VMU - 50
-Famicom - 385
-Famicom Disk System (FDS) - 128
-Sega Genesis - 1,040 (784 + 137 + 34 + 44 + 41)
    In submenu: Genesis - Sonic Hacks - 137
    In submenu: Genesis Streets of Rage Hacks - 34
    In submenu: Genesis - Misc. Hacks - 44
    In submenu: English Megadrive Translations - 41
-Sega MSU-MD - 51 !!!!!
-Intellivision - 136
-Sega Master System - 277
-Sega MegaDrive (Japan) - 191
-Nintendo 64 (N64) - 302
    N64 Hacks in subfolder - 20
-Neo Geo - 140
-Neo Geo CD - 20
-Nintendo (NES) – 1,479 (782 + 697)
    In submenu: NES Hacks - 697
-Odyssey2 - 85
-PC Engine - 290
-PC Engine-CD - 45
-Satellaview - 34
-Sony PlayStation 1 (PSX) - 579  !!!!!
-Sega Saturn - 10
-Sega Genesis 32x - 34
-Sega CD - 155  !!!!!
-Super Famicom - 509
-Sega SG-1000 - 68
-Super Nintendo (SNES) – 1,004 (795 + 64 + 145)
    In submenu: SNES Hacks - 64
    In submenu: SFC English Translations - 145
-SNES-CD (MSU1) - 150 !!!!!!!!!
-Sufami Turbo - 15
-SuperGrafx - 5
-TurboGrafx16 - 94
-TurboGrafx16-CD - 40
-Vectrex – 24
-Virtual Boy - 25
-Doom style Ports - 8 (Including Brutal Doom, Doom Ultimate, Doom II, The Plutonium Experiment, TNT Evilution, Heretic, Hexen, & Strife)
-EasyRPG - 11
-LowRes NX - 102
-OpenBOR - 128
-Pico-8 - 42
-ScummVM - 18
-Solarus - 8
-Tic-80 - 1,031
-Uzebox - 61
-Wolfenstein - 1
-Other Ports - 102 games (incl. some gems).
 
Handhelds:
-Arduboy - 233
-Atari Lynx - 83
-Game & Watch - 52
-Sega Game Gear - 259
-Gameboy - 834
-Gameboy Advance – 1081
    Includes GBA Hacks in submenu
-Gameboy Color – 572
    Includes GBC Hacks in submenu
-Megaduck - 25
-Nintendo DS (NDS) - 100
-NeoGeo Pocket - 9
-NeoGeo Pocket Color – 40
-PokemonMini - 22
-Sony PSP - 30
-Sony PSP Minis - 30
-Super Game Boy - 25
-Watari Supervision - 44
-Wonderswan - 117
-Wonderswan Color - 100