A node-locked license lets you use RVS on a machine that a USB dongle is plugged into. You can install RVS on multiple machines and switch the machine you're using RVS on by moving the USB dongle to the new machine.
Multiple people can use RVS for each node-locked license, but only one person can use it at once.
With a node-locked license, you cannot install RVS on shared user machines, thin clients, systems that use remote desktop, or servers, nor use it in continuous integration environments. If you want to use RVS on these systems or environments, you can use a floating license, which you can upgrade to at any time.