The TRIPP-LITE Secure KVM Switch 4-Port DVI + Audio is a high-quality KVM switch box designed for secure access to multiple computers. With NIAP PP3.0 certification and support for CAC, this product ensures a reliable and secure computing environment. The DVI connector allows for seamless integration with a variety of devices, making it a versatile solution for managing multiple workstations with ease. The Tripp Lite brand is known for its durability and performance, making this KVM switch a dependable choice for businesses and individuals looking to enhance their computing experience.