Tested and certified to NIAP Protection Profile version 3.0 DVI video up to 2560x1600 at 60Hz (Dual-Link), VGA (via adapter), USB HID, PS2, and stereo audio Equipped with anti-tampering 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 Non-reprogrammable ROM Supports balanced speaker outputs and switching