Amazon.com: Vilros Raspberry Pi 4 4GB Retro Gaming Kit with SNES Style Controllers and NES Style Case (4GB RAM) : Video Games
Memory map - SNESdev Wiki
Super Nintendo Architecture | A Practical Analysis
Zaxour 阿宅 on X: "Once again using the amazing @240pTest by mega drive magus @Artemio, I was able to narrow down the problem the the PCM PSRAM IC's. Also thanks to @leo__oliveira
Nintendo SNES disassembly and chips identification - YouTube
Super Nintendo Entertainment System - Wikipedia
Non Volatile RAM Upgrade for SNES & SFC Cartridges : 4 Steps (with Pictures) - Instructables
Memory map - SNESdev Wiki
Non Volatile RAM Upgrade for SNES & SFC Cartridges : 4 Steps (with Pictures) - Instructables
The SNES memory - Assembly for the SNES
Vilros Raspberry Pi 4 Retro Gaming Kit-Includes Gamepads and Gaming Co – Vilros.com