PlayStation 1 | RetroRGB
Does anyone know of any accessories that used the Serial I/O port on the PSX? : r/psx
PS1 Controller Port Only-good - Etsy
The decline of PSX I/O : r/psx
Orion_'s Website
PlayStation models - Wikiwand
PlayStation models - Wikipedia
Sony Playstation 1 PSX PS1 With Parallel I/O Port Model - Etsy
How to connect hook up slim sony playstation PS1 PSone — Gametrog
Sony PlayStation | Parallel Port Device | - YouTube
PS1 - All – InSpireVideoGames
Buy PS1 Replacement Part: Official Playstation Controller Port Playstation Australia
Vita gets PS1 port listings | GamerNode
Sony playstation 1 PS1 Bundle (very rare parallel port edition) | eBay
Quick speculation on the PS1 Classic possible hidden feature (In the comments) : r/playstation
The Dungeons & Dragons PS1 Game You Didn't Get To Play
How to connect usb/serial to ps1? - PlayStation Development Network
Sony PlayStation Teardown - iFixit
no$psx - nocash Playstation 1 emulator/debugger
PS1 Sony PlayStation 1 Controller Port ONLY SCPH 1001 5501 7501 9001-Just OK | eBay
2 in 1 Dual USB Ports for PS1 for PS2 to USB 2.0 Controller Adapter Converter Adapter for Sony PS2 Wired Controller|port usb|port usb 2.0port adapter - AliExpress
