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Rectangular black metal box with four push buttons and multiple DVI USB ports on the front

Vertiv

Vertiv SC840-001 4-Port DVI USB KVM Switch

SKU CH-B873-G8PRB MPN SC840-001

A secure 4-port DVI-I KVM switch with isolated processing paths, NIAP PP3.0 certification, CAC port and USB console support for 4K at 30 Hz or dual-link DVI at 60 Hz

  • Console portsUSB Type-A
  • Computer ports4 Ports
  • Monitor ports4 Ports
  • Supported video resolutionUHD 4K - 3840 × 2160 pixels @ 30 Hz (via DVI to HDMI cable)
  • Switching methodPush Buttons
  • Monitor supportDVI-I, single-link/dual-link HDMI and VGA with adapter

Style 4-Port DVI-I

  • NIAP PP3.0 certified security prevents data leakage between ports
  • Four DVI-I ports support dual-link 2560x1600 at 60 Hz or UHD 3840x2160 at 30 Hz
  • Front push buttons give instant PC selection with lock-status LEDs
  • CAC port enables secure smart-card authentication for each connected system
  • Wide 100-240 V AC input and 0-40 °C operating range suit global deployments

Secure 4-Port DVI KVM Switch

The Vertiv SC840-001 is a secure desktop KVM switch designed for environments that require strict data isolation. It lets a single operator control four separate computers using one USB keyboard, mouse and DVI monitor. Certified to NIAP Protection Profile V3.0, it targets government and defence users who need assured separation between classified and unclassified networks.

Video capacity and port limits

The switch supports UHD 4K at 3840x2160 pixels @ 30 Hz when a DVI-to-HDMI cable is used, and dual-link DVI at 2560x1600 pixels @ 60 Hz with a native DVI cable. VGA sources are handled up to 2048x1536 pixels via adapter. Four computer ports and four monitor ports are provided; the unit does not support more than four connected systems or displays beyond the listed resolutions.

Thermal, noise and power profile

Operating temperature ranges from 32° to 104° F (0° to 40° C) with humidity at 0-80% RH non-condensing. Maximum internal power draw is 35 W from a 100-240 V AC supply. The enclosure has no moving parts, so acoustic output is negligible in normal office conditions.

How it compares

Measured against everything we stock in KVM Switches & Rack Consoles, at today’s prices. Recalculated every night.

Price $971.99
Pricier than about 91% of the 4,010 comparable items (median $105.49).

Specifications

Product
Brand nameCybex
Model nameSC840-001
Product typeDVI, USB
Display
Supported video resolutionUHD 4K - 3840 × 2160 pixels @ 30 Hz (via DVI to HDMI cable)
DVI dual-link - 2560 × 1600 pixels @ 60 Hz (via DVI cable)
VGA - 2048 × 1536 pixels
Graphics
Monitor supportDVI-I, single-link/dual-link
HDMI and VGA with adapter
Ports & slots
Console portsUSB Type-A
Computer ports4 Ports
Monitor ports4 Ports
USB supportWith USB support
Power
Power requirementsPower Requirements: 35 W Max Internal
AC Input Voltage: 100 to 240 V AC
Size & build
Product dimensions1.7 in × 13.7 in × 5 in
Product weight3.2 lb (1.45 kg)
Shipping weight2.72 kg
Package size586 × 384 × 114 mm
Environment & compliance
Temperature rangeOperating Temperature: 32° to 104 °F; 0° to 40 °C
Storage Temperature: "-4° to 140 °F; -20° to 60 °C"
Humidity range0-80% RH, non-condensing
More details
Switching methodPush Buttons

Other versions of this model

1 more in the same range

Questions about this item

Will my older VGA monitors work with the SC840-001 switch?

Yes, VGA monitors are supported at 2048x1536 resolution using a suitable DVI-to-VGA adapter on the DVI-I ports.

How can I verify the SC840-001 is operating correctly after connecting four computers?

Press the front push buttons to cycle ports; the NUM Lock, CAPS Lock and Scroll Lock LEDs show the active port and keyboard status.

Does the SC840-001 include the DVI cables needed for four computers?

The package contains the KVM unit and a power adapter; DVI cables for each computer connection must be purchased separately.

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