Mitsumi PS/2 Mouse ECM-S3902 Tested Works

Mitsumi Electronics Mouse MPN:ECM-S3902, Not Tested! Sold As Is!

Vintage Mitsumi 2-Button Mechanical Ball Mouse ECM-S3902 PS/2

Vintage Mitsumi 2-Button Mouse ECM-S3902 PS/2 Compatible Mouse

Mitsumi PS/2 Mouse ECM-S3902 2 BUTTONS mechanical m-1

RARE NEW VINTAGE BLACK MITSUMI 2 BUTTON PS2 MECHANICAL MOUSE RM2-CMP36 RM3-M1

Mitsumi PS/2 Optical Scroll Mouse ECM-S6102 Black Untested

Monorail 2-Button Mouse ECM-S3902 PS/2 Compatible Mouse Trackball