PS3 Internal Memory Cards for Backwards Compatibility Hands-on - IGN
How much RAM does the PS3 have? I have read 256MB, but no way in hell could that run GTAV, or any other game, at 30 FPS. Can someone confirm this? - Quora
Playstation 3 PS3 Official Sony Memory Card Adapter - Retro vGames
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Duracell Extender gives PS3 Slims memory card slots and more USB ports | Ubergizmo
PlayStation 3 technical specifications - Wikipedia
SONY Playstation PS3 Memory Card Adaptor PS1 PS2 Data Transfer JPN #1544 | eBay