Kramer has released the K424F, a secure 4-port dual display DVI-D KVM combiner.
The unit allows secure, simultaneous work and interaction with up to four computers. It suitable for heavy-duty users who are challenged by frequent switching between isolated networks. The K424F integrates up to four isolated sources at different security levels into two large displays.
An RDC port enables user-friendly, comfortable remote control of the KVM switch. For enhanced security, a USB user authentication port (DPP) connects to a smart card or biometric reader. This requires the insertion of a physical authentication card or identification of a fingerprint to access the various computers/networks.