Original PS1 with psio installed Unable to read the CD-ROM drive Memory card

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Retro Game Machine PSIO Optical Drive Emulator Clone-Version for PS1 Thick Machine Optical Drive Emulator Game Accessory F19E

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PlayStation PSIO – SD Flash Drive for your PS1

Retro Game Machine PSIO Optical Drive Emulator Clone-Version for PS1 Thick Machine Optical Drive Emulator Game Accessory F19E

Here is why you should pick Xstation over PSIO to play PS1 Games

PSIO (PlayStation Flash Cart) - Stone Age Gamer

The Original Playstation 1 gets the optical drive emulator