ATEN CS1142DPH4C 2-Port Dual Display 5K Universal Secure KVM Switch with CAC
Overview
The CS1142DPH4C is a 2-port dual-display secure KVM switch designed for environments that handle classified or sensitive data on separate networks simultaneously — think government workstations, defense contractors, intelligence analysts, or financial compliance desks where cross-contamination between sources is a hard security requirement. It supports resolutions up to 5120 x 2880 (5K) across dual DisplayPort and HDMI video interfaces, and ships NIAP Protection Profile for Peripheral Sharing Device (PSD PP v4.0) compliant — the certification standard that procurement teams at federal agencies and cleared facilities require by policy. If you're sourcing ATEN KVM switches for a classified environment, this is the model to evaluate first.
Key Features
- NIAP PSD PP v4.0 Compliance: This is the non-negotiable credential for secure KVM switches in U.S. government and defense procurement. PSD PP v4.0 is not a marketing badge — it means the device has passed independent lab testing for data path isolation, anti-tampering, and peripheral filtering under the Common Criteria framework. Facilities with classified network handling requirements can reference this certification directly in their acquisition documentation.
- 5K Resolution (5120 x 2880) Dual Display: Supporting dual monitors at up to 5K per display means analysts and engineers working with high-resolution imagery, CAD models, or multi-stream video don't have to compromise on visual fidelity when switching between secure and unclassified networks. At 5K you get enough pixel density to work comfortably across both screens without downscaling.
- Dual DisplayPort and HDMI Video Interfaces: Both DP and HDMI outputs are active simultaneously on each port, giving you flexibility to pair a 5K DisplayPort monitor with an HDMI secondary — or match whatever display mix is already on the desk — without introducing additional signal converters that could complicate a security audit.
- CAC (Common Access Card) Support: The built-in CAC reader port allows smart card authentication to pass securely to the active computer without bridging the two sources. For DoD and federal users, this eliminates the need for a separate CAC reader per workstation while maintaining strict peripheral isolation — a meaningful reduction in desk clutter and potential attack surface.
- Hardware-Level Isolation Between Sources: The universal secure KVM architecture enforces physical isolation between the two connected computers. There is no software pathway between sources — USB data, audio, and video signals cannot cross from one connected host to another. This is a hardware enforcement model, not a policy-based one.
- 4 USB Ports: Four USB peripheral ports let you share keyboard, mouse, CAC reader, and one additional device (e.g., a controlled USB drive reader) across both connected computers — all filtered and isolated per the PSD PP v4.0 spec. No uncontrolled USB pass-through.
- Desktop Form Factor: Designed for desk deployment, not rack mounting. This is a direct-operator device — it sits on the workstation desk and is switched manually. There is no remote switching or virtual media in this product class; the operator physically controls which host receives peripherals.
Integration and Compatibility
The CS1142DPH4C connects two computers, each requiring a DisplayPort output (for 5K) or HDMI output, plus USB. Computers do not need special drivers — the KVM presents as a standard USB HID device to each host. CAC functionality depends on the connected computer's smart card middleware stack (e.g., ActivClient for Windows); the KVM itself is middleware-agnostic. For environments deploying this into a KVM switch infrastructure alongside IP-based KVM extenders or matrix systems, note that this is a local desktop switch only — it does not integrate with IP KVM management platforms. Pair with a NIAP-compliant KVM cable kit appropriate for your display and USB connection distances. Country of origin is Taiwan.
Frequently Asked Questions
Q: Is the CS1142DPH4C NIAP certified?
A: Yes. The CS1142DPH4C is compliant with the NIAP Protection Profile for Peripheral Sharing Devices (PSD PP v4.0), which is the current certification standard required by U.S. federal and defense procurement for secure KVM switches.
Q: Can the CS1142DPH4C support two monitors per computer?
A: Yes. It is a dual-display KVM switch, supporting two monitors simultaneously per connected computer, with both DisplayPort and HDMI video interfaces active. Maximum resolution is 5120 x 2880 (5K).
Q: Does the CS1142DPH4C support Common Access Card (CAC) readers?
A: Yes. CAC support is built in. The switch routes smart card authentication to the active host while maintaining peripheral isolation between the two connected computers per PSD PP v4.0 requirements.
Q: What is the warranty on the CS1142DPH4C?
A: The CS1142DPH4C carries a 2-year manufacturer warranty.
Q: How many computers can be connected to the CS1142DPH4C?
A: Two computers. It is a 2-port KVM switch supporting one local user who switches control between the two connected hosts.
Q: Can the CS1142DPH4C be rack mounted?
A: No. The CS1142DPH4C is a desktop-mount device. It is designed for direct workstation desk deployment, not rack installation.
The CS1142DPH4C sits in a very specific procurement lane: you need it when your facility security officer requires a NIAP PSD PP v4.0 certified device and your analyst is running a dual 5K display setup that can't be downgraded to 4K just to fit an older KVM. The combination of 5120 x 2880 resolution, dual DP/HDMI outputs, and CAC pass-through in a single certified unit is the actual differentiator here — most secure KVMs in this class top out at 4K.
Technical Highlights:
- PSD PP v4.0 (NIAP 4.0): Hardware-enforced isolation tested under Common Criteria — not a firmware policy. Each USB and video path is physically separated between the two connected hosts, which is what the certification validates and what cleared facilities require in writing.
- 5K Dual Display: 5120 x 2880 across two simultaneous monitors means intelligence imagery, engineering models, or high-res surveillance footage renders without compromise on either connected network. You won't be asked to sacrifice display quality for security policy compliance.
- CAC Support with Peripheral Isolation: Smart card authentication routes to the active host only — no bridge between sources. For DoD users running ActivClient or equivalent middleware, this is a drop-in fit that eliminates the per-seat CAC reader without creating a cross-domain pathway.
Deployment Considerations:
- Each connected computer needs DisplayPort output to reach 5K resolution; HDMI is available on both outputs but tops out below 5K on most HDMI 2.0 implementations — verify your host GPU and cable spec before deployment if 5K is required on both displays.
- This is a 2-port desktop device with no IP management interface and no remote switching capability — if your environment needs more than two sources or centralized KVM management, this product class won't scale to that requirement.
This is the right device for a cleared two-person workstation or a single analyst desk handling both classified and unclassified networks under a NIAP-compliant security plan — not a general-purpose office KVM.
