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Manufacturer: Vertiv Last updated: September 12, 2026
Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75) Review
The Vertiv Cybex SC800 Secure SC840DVI-400 is an 8-port NIAP PP 3.0 certified secure KVM switch with DVI-I video up to 1920x1200 and no USB data hub, priced at $1,050.75.
This is Vertiv's line for government and defense desks that must show formal certification, not just isolated switching - the SC800 Secure family strips out any USB hub ports specifically so a connected drive can't be used to move data between classified and unclassified machines.
Certification Is the Whole Point
Unlike the SwitchView 300/200 Series which offer isolation without paperwork, the SC800 Secure line carries NIAP Protection Profile 3.0 certification, the bar most U.S. government and defense procurement specs actually require before a KVM can touch classified networks.
No USB Hub by Design
Dropping data-capable USB ports entirely (keyboard/mouse pass-through only) closes off a common exfiltration path that even isolated-but-uncertified switches like the SwitchView series still expose through peripheral USB.
Comparison to Alternatives
Versus the Vertiv Cybex SC820DPH-400 - that swaps DVI for DisplayPort/HDMI, worth choosing based on which video standard the connected servers use. Versus the Vertiv SwitchView 300 Series (SV340DPH-400) - cheaper and isolated but not NIAP-certified, unsuitable where certification is mandated. Versus the Raritan Dominion KX III - that's an enterprise IP KVM for remote server management, a completely different use case from an air-gapped secure desktop switch.
Specifications
Design
| Port Count | 8 |
|---|---|
| Switching Method | Front-panel pushbutton, single-port select only |
Video & Features
| Video Standard | DVI-I |
|---|---|
| Max Resolution | 1920x1200 |
| USB Hub Ports | 0 |
| Audio Support | No |
In the box and price
| Price | 1050.75 USD |
|---|
| Brand | Vertiv |
|---|---|
| Model | SC840DVI-400 |
| Security | NIAP PP 3.0 certified, tamper-evident chassis, no shared buffer memory |
| Rack Mount | Optional rack kit available |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating9 / 10
The certified choice for classified or defense desks needing 8-port DVI switching with no exfiltration path.
Best for
- Government and defense desks with a hard NIAP PP 3.0 certification requirement
- Classified/unclassified dual-network workstations needing 8 ports
- Facilities standardizing on DVI-connected secure workstations
Not for
- Commercial offices that don't need formal certification (the SwitchView series is cheaper)
- Desks needing a USB data hub for peripherals like external drives
- Buyers on DisplayPort/HDMI-only hardware (see the SC820DPH-400 instead)
FAQs
What are the key specifications of the Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)?
The Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75) is a KVM switch from Vertiv. Key specs: Port Count 8 computers, Switching Method Front-panel pushbutton, single-port select only, Video Standard DVI-I, Max Resolution 1920x1200, USB Hub Ports 0 (keyboard/mouse only, no data hub to prevent exfiltration).
Who is the Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75) best suited to?
It suits government and defense desks with a hard niap pp 3.0 certification requirement, classified/unclassified dual-network workstations needing 8 ports, facilities standardizing on dvi-connected secure workstations.
What are the drawbacks of the Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)?
It is a poor fit for commercial offices that don't need formal certification (the switchview series is cheaper), desks needing a usb data hub for peripherals like external drives, buyers on displayport/hdmi-only hardware (see the sc820dph-400 instead).
Compare and read more
- Adder AdderView PRO AV4PRO (4-8 Computers / 1-4 Monitors / DVI-VGA / Modular Multi-Head) vs Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)
- Adder ALIF1104T (HDMI KVM-over-IP Transmitter over 1GbE / $1,201.75) vs Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)
- Adder AdderLink IPEPS (IPEPS) (1 Server / IP-Based Remote KVM over IP / Single-Port Extender) vs Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)
- Adder ADDERView PRO (AV4PRO-DVI) (4 Computers / DVI / Secure Desktop KVM / $540.00) vs Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)
- Adder ALIF1002P (Network DVI Extender Transmitter & Receiver / $3,051.40) vs Vertiv Cybex SC800 Secure (SC840DVI-400) (8 Computers / DVI / NIAP-Certified Secure KVM / $1,050.75)