SmartAVI

SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch

Expert rating7.3 / 10

Port Count:: 4
Video Standard:: VGA/DVI
Max Resolution:: 1920x1200

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Manufacturer: SmartAVI Last updated: 2026-09-12

SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch Review

SmartAVI K304E-SH secure EAL4+ 4 computer KVM switch Common Criteria classified government VGA DVI

The K304E-SH is SmartAVI's Common Criteria EAL4+ certified 4-computer KVM, aimed at facilities whose accreditation paperwork specifically calls out EAL4+ rather than (or in addition to) NIAP Protection Profiles, a distinction that matters for some international and legacy US government contracts.

EAL4+ vs. NIAP PP4.0

Most of this catalog's newer secure KVMs cite NIAP PP4.0 certification, but some procurement requirements, particularly older contracts and certain allied-nation programs, specify Common Criteria EAL4+ by name instead. The K304E-SH is built and evaluated specifically against that standard.

Straightforward 4-Port VGA/DVI Switching

Beyond its certification profile, the K304E-SH is a conventional 4-computer secure KVM on VGA/DVI video with isolated buffers and optical data diodes, without CAC or dual-head extras, a no-frills unit for desks whose only real requirement is the EAL4+ paper trail.

Comparison to Alternatives

Against the Avocent Cybex SCKM140PP4-400, which is NIAP PP4.0 certified on similar VGA/DVI video, the K304E-SH is the pick specifically when EAL4+ is the named requirement. For CAC-equipped 4-port switching under NIAP PP4.0 instead, see the SmartAVI SKMN-4S-P or Avocent SCKM145.

Our verdict

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

Expert rating7.3 / 10

A niche but important pick for the specific facilities whose accreditation requires Common Criteria EAL4+ rather than NIAP PP4.0.

Best for

Facilities whose accreditation specifically requires EAL4+
Legacy or allied-nation contracts citing Common Criteria EAL4+ by name
Straightforward 4-system VGA/DVI switching without CAC or dual-head needs

Not for

Sites where NIAP PP4.0 is the named requirement instead (see SCKM140PP4-400)
Desks needing CAC/smart-card switching (see SKMN-4S-P or SCKM145)
Dual-monitor or DisplayPort/HDMI requirements (see the SDVN/SDPN/SDHN lines)

Specifications

What these specs mean

Capability Score

4.2/10

How much this switch can do compared with other secure KVM switches, rated from its certification and specifications.

Design

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

Topology

KVM Segment	Secure

Video & Features

Video Standard	VGA/DVI
Max Resolution	1920x1200
USB Hub Ports	2
Audio Support	No

FAQs

What are the key specifications of the SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch?

The SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch is a KVM switch from SmartAVI. Key specs: Port Count 4, Switching Method Front-panel pushbutton with LED status, Video Standard VGA/DVI, Max Resolution 1920x1200, USB Hub Ports 2.

Who is the SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch best suited to?

Best suited to: Facilities whose accreditation specifically requires EAL4+; Legacy or allied-nation contracts citing Common Criteria EAL4+ by name; Straightforward 4-system VGA/DVI switching without CAC or dual-head needs.

What are the drawbacks of the SmartAVI K304E-SH Secure EAL4+ 4 Computer KVM Switch?

Not the best fit for: Sites where NIAP PP4.0 is the named requirement instead (see SCKM140PP4-400); Desks needing CAC/smart-card switching (see SKMN-4S-P or SCKM145); Dual-monitor or DisplayPort/HDMI requirements (see the SDVN/SDPN/SDHN lines).