Black Box NIAP 3.0 Secure 4-Port Dual-Head HDMI KVM SwitchThe Black Box NIAP 3. 0 Secure 4 Port Dual Head HDMI KVM Switch is engineered for high security, multi system control in government, defense, and enterprise environments. It enables a single operator to securely manage up to four HDMI enabled computers from one workstation, using one keyboard and mouse and two HDMI displays. With NIAP 3. 0 certification, this compact KVM switch adds robust data protection, tamperresistant hardware, and streamlined