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SmartAVI SDPN-4D-P 4-Port Dual-Head Secure Pro KVM (DisplayPort)
SmartAVI

SmartAVI SDPN-4D-P 4-Port Dual-Head Secure Pro KVM

Expert rating8 / 10

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

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Manufacturer: SmartAVI Last updated: 2026-09-12

SmartAVI SDPN-4D-P 4-Port Dual-Head Secure Pro KVM (DisplayPort) Review

SmartAVI SDPN-4D-P 4 port dual head secure pro KVM DisplayPort CAC smart card four computer classified

The SDPN-4D-P combines the SDPN-4D's native DisplayPort dual-head switching across four computers with a switched CAC/PIV reader port, covering the common case of a 4-network dual-monitor analyst desk that also needs smart-card authentication.

CAC Across Four Networks, Two Monitors

The switched smart-card port follows the active network exactly like the peripherals and both displays, so an operator moving from network 2 to network 4 gets that network's CAC path automatically.

Native DisplayPort Resolution Retained

As with the non-CAC SDPN-4D, this unit keeps the 4K-per-head ceiling that the DVI-I SDVN-4D-P can't match, for facilities that need both CAC and higher resolution.

Comparison to Alternatives

Against the Avocent SCKM145's single-head CAC-equipped design, the SDPN-4D-P is the pick for dual-monitor desks. The DVI-I sibling SDVN-4D-P covers the same use case for legacy display fleets, and the SDPN-4Q-P scales to four monitors.

Specifications

Design

Port Count4
Switching MethodFront-panel pushbutton

Topology

KVM SegmentDesk

Video & Features

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

In the box and price

Price950.56 USD
Security CertificationNIAP PP4.0 compliant design
Data IsolationIsolated dual-head video buffers per channel
CAC/Smart Card SupportYes, dedicated switched CAC/PIV reader port
BrandSmartAVI
ModelSDPN-4D-P
Spec Score4.9
Monitors2

Expert Review

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

Expert rating8 / 10

A well-rounded pick for 4-system dual-monitor DisplayPort desks that need CAC/PIV switching without sacrificing resolution.

Best for

  • 4-system dual-monitor DisplayPort desks requiring switched CAC
  • Facilities standardizing on modern displays with smart-card access
  • Analysts needing higher resolution than DVI-I with CAC support

Not for

  • Sites with no CAC requirement (base SDPN-4D is cheaper)
  • Legacy DVI-I fleets (see SDVN-4D-P)
  • Four-monitor desks better served by the SDPN-4Q-P

FAQs

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

The SmartAVI SDPN-4D-P 4-Port Dual-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, USB Hub Ports 3.

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

It suits 4-system dual-monitor displayport desks requiring switched cac, facilities standardizing on modern displays with smart-card access, analysts needing higher resolution than dvi-i with cac support.

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

It is a poor fit for sites with no cac requirement (base sdpn-4d is cheaper), legacy dvi-i fleets (see sdvn-4d-p), four-monitor desks better served by the sdpn-4q-p.

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