KVM is a management device in the network. It is the first letter of the words Keyboard, Video and Mouse. it can control multiple devices with a set of keyboard, display and mouse.

The main purpose of the KVM switch is to enable the unified group KVM console to connect to many devices Because in a network, there may be several servers, each of which has a set of keyboard, mouse, and monitor, which is extremely inconvenient for management; In addition, in high-quality computer rooms, it can be said that land is precious. The location of physical space is extremely precious, and too much equipment emits heat, causing the temperature of the computer room to rise. Facing these problems, KVM came into being. The network management personnel only need a set of KVM system to perform any switching and operation between different hosts and operating systems in the same place, just like sitting in the local operation. Therefore, KVM has obvious advantages in improving network management efficiency, saving space, environmental protection and energy conservation.