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SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort)
SmartAVI

SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM

Expert rating8.4 / 10

KVM SwitchesView on SmartAVI
Port Count:
4
Video Standard:
DisplayPort
Max Resolution:
4K@30Hz per head (x4)

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Manufacturer: SmartAVI Last updated: 2026-09-12

SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort) Review

SmartAVI SDPN-4Q-P 4 port quad head secure pro KVM DisplayPort four monitor CAC classified analyst

The top of SmartAVI's DisplayPort secure KVM line, the SDPN-4Q-P switches four native DisplayPort monitors at once across four classified computers with CAC/PIV support included, for the most demanding quad-monitor analyst workstations.

The Premium Quad-Head DisplayPort Option

At $1,982.02 this is the most expensive item in the SmartAVI secure switch lineup covered here, reflecting the combination of four independently isolated DisplayPort video channels plus CAC switching in a single unit.

Built for Full Fusion-Cell Workstations

Like its DVI-I counterpart the SDVN-4Q-P, this unit targets four-monitor intelligence or command workstations, but keeps the higher native DisplayPort resolution ceiling those users typically need for detailed mapping and imagery work.

Comparison to Alternatives

Against the SDVN-4Q-P, the DisplayPort version costs more but delivers 4K per head instead of DVI-I's 1920x1200 ceiling. For dual-monitor desks that don't need all four displays, the SDPN-4D-P at less than half the price is the more economical choice.

Specifications

Design

Port Count4
Switching MethodFront-panel pushbutton

Topology

KVM SegmentDesk

Video & Features

Video StandardDisplayPort
Max Resolution4K@30Hz per head (x4)
USB Hub Ports3
Audio SupportNo

In the box and price

Price1982.02 USD
Security CertificationNIAP PP4.0 compliant design
Data IsolationIsolated quad-head video buffers per channel
CAC/Smart Card SupportYes, dedicated switched CAC/PIV reader port
BrandSmartAVI
ModelSDPN-4Q-P
Spec Score5.7
Monitors4

Expert Review

Reviewed by Burooj Alam. Rated by us, not by users.

Expert rating8.4 / 10

The premium pick for four-monitor DisplayPort analyst workstations needing both native 4K resolution and switched CAC across four classified networks.

Best for

  • High-resolution four-monitor intelligence/fusion-cell workstations
  • Facilities requiring both native DisplayPort and switched CAC at quad-head scale
  • Command centers standardizing top-tier secure workstations

Not for

  • Two-monitor desks better served by the SDPN-4D/SDPN-4D-P
  • Legacy DVI-I quad-head needs (see SDVN-4Q-P)
  • Budget-conscious buys where quad-monitor switching isn't required

FAQs

What are the key specifications of the SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort)?

The SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort) is a KVM switch from SmartAVI. Key specs: Port Count 4, Switching Method Front-panel pushbutton, Video Standard DisplayPort, Max Resolution 4K@30Hz per head (x4), USB Hub Ports 3.

Who is the SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort) best suited to?

It suits high-resolution four-monitor intelligence/fusion-cell workstations, facilities requiring both native displayport and switched cac at quad-head scale, command centers standardizing top-tier secure workstations.

What are the drawbacks of the SmartAVI SDPN-4Q-P 4-Port Quad-Head Secure Pro KVM (DisplayPort)?

It is a poor fit for two-monitor desks better served by the sdpn-4d/sdpn-4d-p, legacy dvi-i quad-head needs (see sdvn-4q-p), budget-conscious buys where quad-monitor switching isn't required.

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