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Price: $441.36
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Last Updated: Oct 14, 2026
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SM40NU-N is a 4-port KM switch. It enables users to share peripherals - keyboard, mouse, audio and USB - between four different networks/computers. 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.
- Multi Display Support - Enables switching keyboard and mouse control between computers, when each computer is connected to up to 4 displays (either extended or duplicated).
- Copy & Paste - Transfer text and files between all the computers that are connected to the KVM switch (no network connection is needed between parties). Use standard copy and paste keyboard key combinations (CTRL+C / CTRL+V) or context-menu commands.
- Super Speed USB 3.0 Ports - Transfer data and files between peripherals and computers USB 3.0 Super Speed rates through the KVM switch USB 3.0 ports.
- Express USB Charging - Rapidly charge USB devices connected to the high-power USB ports.
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Applications
- Government agencies
- Military
- Financial institutions
Main Specification
| General Information | |
| Manufacturer | Kramer Electronics LTD |
| Manufacturer Part Number | 22-00004090 |
| Manufacturer Website Address | http://www.kramerelectronics.com |
| Brand Name | Kramer |
| Product Model | SM40NU-N |
| Product Name | HighSecLabs 4-Port KM Switch |
| Product Type | KM Switchbox |
| Technical Information | |
| Connectivity Technology | Wired |
| Number of Computers Supported | 4 |
| Interfaces/Ports | |
| Network (RJ-45) | Yes |
| USB | Yes |
| USB Standard | USB 3.0 |
| Number of Network (RJ-45) Ports | 1 |
| Number of USB Ports | 14 |
| Environmental Conditions | |
| Minimum Operating Temperature | 32°F (0°C) |
| Maximum Operating Temperature | 104°F (40°C) |
| Power Description | |
| Input Current | 1.50 A |
| Input Voltage Range | 100V to 240V AC |
| Physical Characteristics | |
| Height | 1.7" |
| Width | 13.5" |
| Depth | 5.8" |
| Weight (Approximate) | 2.87 lb |
| Miscellaneous | |
| Country of Origin | Israel |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
