Black Box Agility KVM-Over-IP Matrix Extender Kit - Dual-Head, Dual-Link DVI-D, USB 2.0Black Box Agility KVM Over IP Matrix Extender Kit Dual Head, Dual Link DVI D, USB 2. 0 The Black Box Agility KVM Over IP Matrix Extender Kit is a powerful, IP based solution designed for any environment that requires secure, real time control of distant workstations. This dual head, dual link DVI D KVM extension system transmits video, USB 2. 0, and audio over a standard Ethernet LAN, enabling operators to manage servers, workstations, or control