This is ONE New model KSM-440BAM Laser assembly for the original Playstation system. Out of the box, it works for the Slim PSOne model SCPH-101. With a laser extension cable and slight modification, it will work on ALL older PSX models as well. If your games are freezing, or the PS 1 is not playing games at all, this will fix your PS up! Repair your good ol reliable PS1 system with this part!