![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 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](https://i.redd.it/q5k4bcqe2rk91.jpg)
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
![Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade](https://m.media-amazon.com/images/I/61-uRTKd6jL._AC_UF1000,1000_QL80_.jpg)
Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade
![Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade](https://m.media-amazon.com/images/I/61wLndE2qPL.jpg)
Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade
![Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade Walfront Illuminated 4.5cm Round LED Trackball Mouse PS/2 PCB Connector, Wired USB Trackball for Arcade](https://m.media-amazon.com/images/S/aplus-media/sc/124a4d79-6efc-4429-bcf8-b2ad0cd2d690.__CR0,0,970,600_PT0_SX970_V1___.jpg)