Lasers

Model 1 (tray loading)

The model 1 Sega CD uses a KSS240A laser.

Model 2 (clamshell)

There are two variations of the model 2 sega cd. The one with a silver ring spindle uses a Samsung SOH-04T. The all black spindle variation uses a Sony KSS210A lens or Sony KSS210B lens. A KSS210B can replace a KSS210A on a sega cd using the KSS210A, but a KSS210A can't replace a KSS210B.