I found this unopened GameShark at Goodwill. Is this the one with the expansion port dongle? : r/psx
The Lost PlayStation Console Add-On! - Gaming History Secrets - YouTube
Game expansion stick，128g Game BOX double plug expansion open source game simulator enhancer game stick kids replacement part with portable hub for ps1 mini and for Playstation Classic : Amazon.sg: Video Games
What was the PS1's Parallel I/O port used for? - Arqade
Worklog - PS1 Native VGA mod (15khz) | BitBuilt - Giving Life to Old Consoles
Bought a second PS1 at a family store with the Parallel I/O port... whatever that does... : r/psx
Replacement Parallel I/O Port Flap Expansion Clip-In Cover For Sony PS – InSpireVideoGames
Could the PS1 support RAM upgrades though it's expansion port? | ResetEra
What was the parallel port used on older PS1s? - PlayStation
The Lost PlayStation Console Add-On! - Gaming History Secrets - YouTube
Sony PlayStation PAL Model SCPH-7502
Sony PlayStation 1 PS1 PSX Video Game Enhancer II Power Replay Cartridge | eBay
Amazon.com: 128GB Game Expansion Memory Stick Game Enhancer with Direct Connection Support Double Play for PS1 Mini dn Game Box : Video Games
PS1 Appreciation/Collectors Thread of Ugly-Ass Polygons | Page 6 | NeoGAF
Sony playstation 1 PS1 Bundle (very rare parallel port edition) | eBay
Sony PlayStation 1 PS1 Original Controller & Memory Card Port | eBay
ACOUTO Game Expansion Memory Stick, 128G Game Source Simulator Expansion Pack For PS1 MINI Dn Game Box Accessories - Walmart.com
USA Parallel Port I/O IO Slot Cover for PlayStation 1 PSX PS1 OEM SCPH 1001 5501 | eBay
PS1 Parallel Port Cover Replacement 3D Printed - Etsy
What was the PS1's Parallel I/O port used for? - Arqade
Parallel Port I/O IO Slot Cover for PlayStation 1 PSX PS1 OEM Genuine | eBay
