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Manufacturer: Adder Last updated: September 12, 2026
ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50) Review
The Adder ADDERView Multi-Viewer CCS-MV4224 is a secure 4-port KVM that can display all four connected computers simultaneously in a quad-screen layout on one monitor, EAL4+/NIAP certified, priced at $3,955.50.
This is the most expensive product in this batch, and the reason is the multiviewer engine: instead of switching one video path at a time like every other secure switch here, it processes and composites four isolated video feeds onto one screen at once, which is a much harder security problem to solve certifiably than simple single-port switching.
Why It Costs Four Times a Simple Secure Switch
Simultaneous multi-screen viewing across security domains means the switch must keep each video stream cryptographically and electrically isolated even while compositing them together in real time - a materially harder (and more expensive) engineering problem than the single-active-port switching every Cybex or SwitchView model in this catalog does.
One Monitor, Four Domains Watched at Once
Security operations centers and network operations centers that need constant situational awareness across four separate networks benefit from seeing all four live at once rather than switching a single view back and forth, which is the entire reason this category of KVM exists.
Comparison to Alternatives
Versus the Vertiv Cybex SC820DPH-400 - far cheaper but only shows one of its 8 ports at a time, unsuitable for a SOC wanting simultaneous views. Versus the Adder ADDERView PRO (AV4PRO-DVI) - a standard single-view 4-port secure switch at a fraction of the cost, appropriate when simultaneous viewing isn't required. Versus the Raritan Dominion KX III - an IP-based remote KVM for server management, a different use case entirely from a certified local multiviewer.
Specifications
Design
| Port Count | 4 |
|---|---|
| Switching Method | Simultaneous quad-screen multiviewer, plus single-view pushbutton select |
Video & Features
| Video Standard | DisplayPort / DVI / HDMI (multi-format inputs) |
|---|---|
| Max Resolution | 4K@30Hz per quadrant |
| USB Hub Ports | 0 |
| Audio Support | No |
In the box and price
| Price | 3955.50 USD |
|---|
| Brand | Adder |
|---|---|
| Model | CCS-MV4224 |
| Security | EAL4+ / NIAP certified, isolated per-channel video processing |
| Display Modes | Full screen, quad-view, picture-in-picture |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating9 / 10
The right (and only reasonable) choice for a SOC that needs certified, simultaneous four-domain viewing on one screen.
Best for
- Security operations centers monitoring four separate networks simultaneously
- Command centers needing certified quad-screen situational awareness
- Facilities requiring EAL4+/NIAP certification with multiviewer capability
Not for
- Single-user desks that only ever look at one computer at a time (the ADDERView PRO is far cheaper)
- Budget-constrained deployments not requiring simultaneous multi-screen viewing
- Remote/off-site server management (use an IP KVM instead)
FAQs
What are the key specifications of the ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)?
The ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50) is a KVM switch from Adder. Key specs: Port Count 4 computers, Switching Method Simultaneous quad-screen multiviewer, plus single-view pushbutton select, Video Standard DisplayPort / DVI / HDMI (multi-format inputs), Max Resolution 4K@30Hz per quadrant, USB Hub Ports 0 (secure, no data hub).
Who is the ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50) best suited to?
It suits security operations centers monitoring four separate networks simultaneously, command centers needing certified quad-screen situational awareness, facilities requiring eal4+/niap certification with multiviewer capability.
What are the drawbacks of the ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)?
It is a poor fit for single-user desks that only ever look at one computer at a time (the adderview pro is far cheaper), budget-constrained deployments not requiring simultaneous multi-screen viewing, remote/off-site server management (use an ip kvm instead).
Compare and read more
- Adder AdderView PRO AV4PRO (4-8 Computers / 1-4 Monitors / DVI-VGA / Modular Multi-Head) vs ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)
- Adder ALIF1104T (HDMI KVM-over-IP Transmitter over 1GbE / $1,201.75) vs ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)
- Adder AdderLink IPEPS (IPEPS) (1 Server / IP-Based Remote KVM over IP / Single-Port Extender) vs ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)
- Adder ADDERView PRO (AV4PRO-DVI) (4 Computers / DVI / Secure Desktop KVM / $540.00) vs ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)
- Adder ALIF1002P (Network DVI Extender Transmitter & Receiver / $3,051.40) vs ADDERView Multi-Viewer (CCS-MV4224) (4 Computers / Quad-Screen Simultaneous View / Secure KVM / $3,955.50)