Sony PCG-F640 - Manual (Page 65)

Connecting an External Mouse or Keyboard
65
Connecting an External Mouse or Keyboard
You can connect a USB or PS/2® style mouse or keyboard.
Plug the keyboard cable or mouse cable into the appropriate connector with
the
mark facing up.
To connect both a PS/2 mouse and keyboard at the same time, use an optional PS/
2 division connector.
You can also use one or both of the USB ports to connect a mouse and keyboard
at the same time.
USB and PS/2 ports
➠
Mouse
Keyboard
USB
PS/2