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I'm looking for a secure KM switch that has those features: secure EAL-4; 2-port USB; VDT (virtual display technology) supported; insignificant delay between switches; copy-paste supported; file transfer supported. So, I was looking for prices, and noticed that KM switches are more expensive than KVM switches: so, I decided to look for KVM switches, and SmartAVI SDPN-2S seems interesting. Does the k+m emulation feature means that you can use it as a KM switch without plugging the monitors to the switch? Does all other features I've mentioned before are supported? If not, what models do you recommend me?
Thank you for your inquiry,

You could indeed use a secure KVM switch such as this SDPN-2S as a KM switch by not plugging in the monitor connections.

Here are a couple of notes regarding your application:
1) VDT (switching using your mouse cursor) is currently only be available on some KM switches such as the SmartAVI SKM series or Adder Command & Control (CCS) series
2) "File transfer supported": NIAP EAL+4 security certification requires secure KVM switches to limit USB ports to user interaction and authentication devices for security reasons. Devices such as USB storage drives, are actively prohibited. A regular KM / KVM switch with USB hub port(s) would let you switch USB storage drives between source computers.
3) "Copy-paste support": Regular in-OS "Copy-paste" is supported. "Copy-paste" between different sources is not supported for the same reason as 2). KVM Over IP Switches, in example, would support "Copy-paste" across different sources, but can not be certified EAL+4.
4) Switching time: A DVI or HDMI KVM, such as the SDVN-2S (DVI-I version) would switch a bit faster than SDPN-2S. DisplayPort KVMs generally have slower switching speed due to video emulation limitations.

Please feel free to give your KVM Switches Online sales representative a call, we would be happy to help you find the ideal solution for your application!
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