The Tripp Lite B002-DUA4 4 Port DVI / USB Secure KVM Switch with Audio offers secure and reliable access for any government/military desktop environment where security is required, by providing safe switching between computers operating on different networks. NIAP-certified to comply with Common Criteria EAL2+ security requirements.
Hardware security includes: tamper-evident tape, chassis intrusion detection, and tamper-proof hardware, while software security includes restricted USB connectivity — non HIDs (Human Interface Devices) are ignored when switching — an isolated channel per port that makes it impossible for data to be transferred between secure and unsecured computers, and automatic clearing of the keyboard buffer. CAC ( Common Access Card ) support*
By combining physical security with controlled USB connectivity, the B002-DUA4 gives you the means to consolidate multiple workstations of various security classification levels with one keyboard, monitor and mouse (KVM) console.

Tripp Lite 4-Port NIAP-Certified (EAL 2+) Secure DVI / USB KVM Switch Features,

• Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases.
• Isolated Channels – Each port is its own channel, making it impossible for data to be transferred between connected computers.
• Tamper-Warning Labels – Tamper-Warning labels will be placed on each side of the KVM, providing visual evidence if the unit has been tampered with or compromised.
• Tamper-Proof Components – All internal circuitry is soldered directly to the board, preventing the components from being tampered with.
• Safely switch between computers with varying security levels.
• National Information Assurance Partnership (NIAP) certified to comply with Common Criteria EAL2+ security requirements.
• Fixed Firmware – Firmware is non-reprogrammable, securing against attempts to alter the logic of the KVM.
• Automatic Keyboard Buffer Clearing – The keyboard buffer is automatically cleared after data transmission, leaving no information stored in the switch.
• No Memory Buffer – The only way to access connected computers is via push button. Port switching methods such as On-Screen Display (OSD) and Hot key Commands, which require memory, have been excluded to further ensure data integrity.
• Compatible with all major operating systems: Windows, Linux, MAC, and SUN
• DVI-I Dual-Link signal supports digital video resolutions up to 2560 x 1600, and analog video resolutions up to 2048 x 1536.
• Supports transfer of EDID information, allowing for optimal display performance.
• Audio support for both speaker and microphone
• Housing Intrusion Protection Technology – Housing Intrusion Protection technology disables the KVM if the housing is opened, causing it to become inoperable. When disabled, the front panel LEDs will flash repeatedly.