Tripp Lite 4-Port NIAP-Certified (EAL 2+) Secure DVI/USB Desktop KVM Switch with Audio (B002-DUA4)

National Information Assurance Partnership (NIAP) certified to EAL 2+ and TAA Compliant
Safely switch between computers (up to 4) with varying security levels
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. Removing these labels will void the warranty
Tamper-Proof Components - All internal circuitry is soldered directly to the board, preventing the components from tampering
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. Opening the housing, and causing the unit to be disabled will void the warranty.
Fixed Firmware - Firmware is non-reprogrammable, securing against attempts to alter the logic of the KVM