SX42HU−3 is a secure 2x4 4K30 UHD HDMI mini matrix KVM switch. It enables viewing and controlling four computers with different security classifications simultaneously while securely sharing peripherals − keyboard, video, mouse, audio, and USB devices. It also enables assigning a USB port to a specific computer while switching other peripherals, such as when a USB smart card reader must remain mapped to a certain computer. SX42HU−3 provides the highest possible isolation between connected computers and is NIAP Common Criteria Protection Profile version 3.0 (PP3.0) certified.

• Highest Security by Design — NIAP Common Criteria Protection Profile version 3.0 (PP3.0) certification for peripheral Sharing Switch (PSS) devices.
• 4K30 UHD Resolution — Supports resolutions up to 3840×2160 @30Hz.
• Independent Peripheral Switching — Supports independently switching video, audio, keyboard, mouse or USB devices between the primary and secondary computers.
• Work Freely Without Compromising Security — Present the display of any connected computer on both mini–matrix displays at the same time or extend the displays to additional 3rd and 4th external displays.
• Prevent Information Leaks — Block peripheral exploits, information leaks, eavesdropping, signal transmission, computer malware, hardware and firmware tampering.
• Filter USB Peripherals — Allow or block specific USB devices based on VID/PID characteristics.
• Smooth Switching Between Computers (Virtual Display Technology) — Automatically switch all peripheral control from one computer to another by dragging the cursor between each computer’s display border.
• Biometric/Smart–Card Reader Support — Connect a smartcard/biometric reader to the secure port to support user authentication across multiple isolated computers.
• Keyboard Lock Indication — Caps Lock, Num Lock, and Scroll Lock indication on front panel.