KVM/netPlus users can use the master KVM/netPlus to access all devices connected to KVM ports on the master and slave KVM units. However, only two port connections can be made to each cascaded unit at any time. Each physical port connection (for example to User 1 or User B) to the cascaded KVM devices allows a user to connect to one KVM port on the secondary KVM unit. So any user can connect to up to two KVM ports on a cascaded device at any time.