The Black Box Secure KVM Desktop Switches allow a single operator to control up to four HDMI computers from a single workplace using one set of keyboard and mouse and one HDMI monitor. They provide peace of mind knowing that each connection is secure. Options include 2 or 4port switches with CAC support. The Secure KVM Desktop Switches protect your sensitive data using the latest technology. The switches have isolated channels to ensure that data is not leaked between secure ports and the outside world. To prevent eavesdropping attempts through vulnerable devices, the switches support unidirectional data flow from computer to peripheral. Mechanical, electrical, and optical isolation stop hacking and data leaks in environments where security is critical. Plus, secure EDID learning prevents unwanted and unsecure data from being transmitted through DDC lines. The Secure KVM Desktop Switches use protected firmware to keep intruders from reprogramming or reading the firmware. Keyboard/internal cache wiping and chassis intrusion protection provide even more security. The Secure KVM Desktop Switches also use antitamper switches and tamperevident seals to shield your confidential data. Features. Tested and certified to NIAP Protection Profile version 3.0. HDMI video up to UHD 4K 3840x2160 at 60Hz, USB HID, and stereo audio. Equipped with antitampering protection such as tamper evident hologram seals. Chassis intrusion, fixed firmware and automatic keyboard data clearing. Absolute secure and isolation between data paths. Secure EDID learning and emulation. Nonreprogrammable ROM. Advanced and fully configurable CAC port. Supports balanced speaker outputs and switching. User Controls Frontpanel buttons. Emulation Keyboard, mouse, videoSpecifications. Connectors Input Interface 2 HDMI Female. Output Interface 1 HDMI Female. Input 4 USB TypeB. Output 1 USB TypeA for KM devices. USB 4 USB TypeB. Input 2 3.5mm female stereo audio. Power Requirements 1 12VDC, 3A power adapter with