You've got two machines at different classification levels and one set of peripherals, and you can't afford a data leak between them. That's the problem this switch kills.
The ATEN CS1142DPH4 is a 2-port secure KVM built for defence, government, healthcare, and finance workstations where a single keystroke on the wrong machine is a breach. It's PSD PP v4.0 certified by NIAP – that means isolation, unidirectional data flow, restricted peripheral filtering, strict audio filtration, and an always-on tamper-proof chassis. No software layer. No network path for data to creep through.
You share one keyboard, mouse, monitor, and speaker set across both machines. Switching is manual: front-panel pushbuttons or the optional Remote Port Selector (sold separately – it's not in the box). You press, you switch, done.
Video output hits 5K dual display (5120 × 2880 @ 60Hz) over a single DisplayPort/HDMI combo connector. Run one screen or two side by side. Both machines stay isolated either way.
In the box: the switch, power adapter, foot pad set, port name labels, HDMI cable lock set, and user instructions. No RPS – that's a separate order if you need it at the desk.
If your environment demands PSD PP v4.0 compliance and you want it on your bench without a six-week lead time from a national distributor, this is the unit
| brand | ATEN |
| model | CS1142DPH4 |
| port_count | 2 |
| video_interface | DisplayPort / HDMI (combo connector) |
| max_resolution | 5120 × 2880 @ 60Hz |
| display_support | Single or Dual |
| switching_method | Manual (front panel pushbuttons; optional RPS) |
| security_certification | PSD PP v4.0 (NIAP) |
| peripheral_sharing | USB keyboard, mouse, monitor, speaker |
| package_contents | 1x CS1142DPH4 switch, 1x power adapter, 1x foot pad set, 1x port name labels, 1x HDMI cable lock set, 1x user instructions |
