The KVM-221 2-port KVM (Keyboard, Video and Mouse) switch is a cost effective device for home and office users. It allows users to easily control two PCs from a single set of keyboard, mouse, and VGA monitor. This switch provides audio support and an audio socket, allowing the two connected PCs to share a set of speakers. The switch provides many easy-to-use features and is perfect for home and small office use. Cost-Effective for PC Users. If you have two PCs and need to use them at the same time, the KVM-221 saves the money and space by allowing you to control the two computers from a set of keyboard, monitor and mouse. Or, you may have a better, bigger monitor and want to connect both PCs to it. The KVM-221 allows you to do this. Two sets of cables are attached to the KVM switch for ready for use, dispensing users of the need to prepare separate cables and connect them to the switch. Versatile Functions. The KVM-221 utilizes advanced microprocessor emulation to intelligently manage each KVM port. This allows simultaneous boot-up of the connected PCs. Auto scan, audible feedback, and keyboard "Hot Keys" make the KVM-221 simple to use and manage. There is also a control button located on the front panel that allows users to switch between the Purchase.