This 8 port usb vga kvm switch allows you to control up to 8 usb computers using only one keyboard mouse and monitor and features an audio and microphone port for each connected computer allowing you to switch between audio signals as well as between pc ports to maximize the number of computers that can be controlled from a single point the usb kvm switch is cascadable allowing multiple units to be connected cascaded together for control of up to 64 computers ensuring a scalable kvm s