Vertiv (Cybex)

Vertiv Cybex Secure KVM 4-Port

Expert rating8 / 10

Port Count:: 4
Video Standard:: DisplayPort/HDMI
Max Resolution:: 4K@30Hz

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Manufacturer: Vertiv (Cybex) Last updated: 2026-09-12

Vertiv Cybex Secure KVM 4-Port (SC945DPH-400) Review

Vertiv Cybex SC945DPH-400 secure KVM 4 port DisplayPort HDMI 4K classified audio switching

The SC945DPH-400 is Vertiv's Cybex-branded 4-port secure KVM with combined DisplayPort/HDMI support and switched audio, positioned as a premium single-monitor desktop unit for classified environments that need both modern video standards and audio in one certified switch.

Dual Video Standard Support

Supporting both DisplayPort and HDMI inputs on the same unit gives facilities flexibility to mix source computer types without needing separate switch models for each video standard.

Audio Switching Alongside Modern Video

Where many DisplayPort/HDMI-era secure KVMs drop audio switching, the SC945DPH-400 keeps it, useful for classified desks running alerting or voice audio that must isolate per network just like the video.

Comparison to Alternatives

Against the Tripp Lite B002-DP1A4-N4, a comparably priced 4-port DisplayPort-only secure KVM without audio, the SC945DPH-400's dual-standard input and audio switching justify its position. Within the Cybex family, the dual-monitor SC945XD is the step up for two-screen desks.

Specifications

Design

Port Count	4
Switching Method	Front-panel pushbutton with LED status

Video & Features

Video Standard	DisplayPort/HDMI
Max Resolution	4K@30Hz
USB Hub Ports	2
Audio Support	Yes

In the box and price

Price	1569.00 USD

Security Certification	NIAP PP4.0 certified
Data Isolation	Isolated video buffers per channel, no shared memory
Optical Isolation	Unidirectional data diodes
Brand	Vertiv (Cybex)
Model	SC945DPH-400

Expert Review

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

Expert rating8 / 10

A well-rounded 4-port secure KVM for classified desks needing both DisplayPort and HDMI source flexibility plus switched audio.

Best for

4-system classified desks mixing DisplayPort and HDMI sources
Facilities needing switched audio alongside modern video standards
Sites replacing older VGA/DVI secure KVMs with current hardware

Not for

Dual-monitor desks better served by the SC920XD or SC945XD
Sites with no audio switching requirement (a cheaper video-only unit suffices)
Budget deployments where DisplayPort-only is sufficient

FAQs

What are the key specifications of the Vertiv Cybex Secure KVM 4-Port (SC945DPH-400)?

The Vertiv Cybex Secure KVM 4-Port (SC945DPH-400) is a KVM switch from Vertiv (Cybex). Key specs: Port Count 4, Switching Method Front-panel pushbutton with LED status, Video Standard DisplayPort/HDMI, Max Resolution 4K@30Hz, USB Hub Ports 2.

Who is the Vertiv Cybex Secure KVM 4-Port (SC945DPH-400) best suited to?

It suits 4-system classified desks mixing displayport and hdmi sources, facilities needing switched audio alongside modern video standards, sites replacing older vga/dvi secure kvms with current hardware.

What are the drawbacks of the Vertiv Cybex Secure KVM 4-Port (SC945DPH-400)?

It is a poor fit for dual-monitor desks better served by the sc920xd or sc945xd, sites with no audio switching requirement (a cheaper video-only unit suffices), budget deployments where displayport-only is sufficient.