Sony PCG-C1X - Manual (Page 50)

VAIO C1 PictureBook Computer User Guide 38
Connecting an External USB Mouse
You can connect an external USB mouse PCGA-UMS1 (optional) to your
computer.
To connect an external mouse
Plug the mouse cable into the USB connector.
✍
See the manual that came with your mouse for more information on installation and use.
USB Mouse to USB Mouse
Computer