Help!] QTronix Libra 90M — can anyone help me confirm this trackball with a female DB9 connector is a PS2 mouse and not USB or Serial? Internal pics in comments: : r/Trackballs
Qtronix Trackball - 22.36.21.003 - EMULATORE DI MOUSE TIPO TRACKBALL - Ausili Informatici per Disabili
Scudo per trackball QTronix - MondoAusili.it - Ausili Informatici per Disabili
QTRONIX TRACKBALL - SOFTIME - AUSILI INFORMATICI PER DISABILI ITALIA PIEMONTE NOVARA
Qtronix KT-30 - Deskthority wiki
Qtronix/iOne Trackball
Qtronix Trackball - 22.36.21.003 - EMULATORE DI MOUSE TIPO TRACKBALL - Ausili Informatici per Disabili
QTronix Scorpius 35 Trackball Keyboard, White - Wired PS/2
Trackball keyboard, PS/2 : KBC-3750PS2 : The Keyboard Company