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Black Box KVS4-2004HVX KVM switch, silver metal chassis, front panel buttons, rear HDMI and DisplayPort connectors

Black Box Corporation

Black Box Corporation KVS4-2004HVX KVM switch 4-port dual-monitor 4K 30Hz

SKU CH-B3KS-H08PV MPN KVS4-2004HVX

Secure 4-port KVM switch with dual-monitor 4K 30 Hz output, FlexPort HDMI/DisplayPort inputs and NIAP PP 4.0 certification

  • PC connectionsInput Interface: (8) DisplayPort or HDMI; Output Interface:
  • Computer portsFlexPort HDMI/DisplayPort - 4 Computer(s)
  • Monitor ports8 Ports
  • Supported video resolutionVideo Output Cable Length: Up to 20 ft Input Cable Length: U
  • Switching methodPush Buttons
  • Temperature rangeOperating Temperature: 32° to 104 °F (0° to 40 °C) Storage T
  • NIAP PP 4.0 certification meets high-security government requirements
  • FlexPort HDMI/DisplayPort handles single or dual-monitor setups
  • 4K 3840x2160 at 30 Hz delivers sharp dual-screen video
  • Front push-buttons give instant PC switching
  • Made in the USA with external 12 V power supply

Secure KVM for dual-monitor workstations

The Black Box KVS4-2004HVX is a NIAP PP 4.0 evaluated secure KVM switch that lets two local operators share four computers. Each console drives dual displays through FlexPort HDMI or DisplayPort outputs while keyboard and mouse connect via USB Type-A ports. Audio switching is provided through 3.5 mm stereo connectors. The unit ships new with an external 12 V DC power adapter.

Dual-monitor 4K at 30 Hz

The decisive specification is the maximum video resolution of 3840 x 2160 at 30 Hz across both monitors. FlexPort inputs accept either HDMI or DisplayPort cables up to 20 ft on each side, and automatic input equalisation maintains signal integrity. USB 1.1 and 2.0 keyboard and mouse emulation keeps peripheral focus stable during switching. Front-panel push buttons select the active computer.

Handles four secure workstations

The switch comfortably manages four isolated computers for two operators who need simultaneous dual-monitor 4K workflows. It runs out when a third local console is required, when 4K at 60 Hz is needed, or when USB peripheral sharing beyond keyboard and mouse is expected. CAC support is not included, and the USB ports are limited to keyboard and mouse emulation only.

How it compares

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

Price $1,219.99
Pricier than about 91% of the 4,010 comparable items (median $105.49).

Specifications

Product
Brand nameBlack Box
Product lineSecure KVM Switch - 4-Port, Dual-Monitor, FlexPort HDMI/DisplayPort, CAC
Model nameKVS4-2004HVX
Product typeHDMI/DisplayPort
Ports & slots
PC connectionsInput Interface: (8) DisplayPort or HDMI;
Output Interface: (2) DisplayPort or HDMI
USB: Input Interface: (8) USB Type-B;
Output Interface: (2) USB 1.1 Type-A for KM Devices;
Emulation: USB 1.1 and USB 2.0 Compatible;
USB: Input Interface: (8) USB Type-B;
Output Interface: (2) USB 1.1 Type-A for KM Devices;
Emulation: USB 1.1 and USB 2.0 Compatible
Computer portsFlexPort HDMI/DisplayPort - 4 Computer(s)
Monitor ports8 Ports
USB supportUser Console Interface: (2) USB Type-A for keyboard and mouse connection only
CAC: No
Signal Type: USB 1.1 and 1.0 Keyboard and Mouse only
Power
Power requirements12 V DC, 3A (minimum) power adapter with center-pin positive polarity.
Size & build
Product dimensions12.57 in W × 1.76 in H × 6.69 in D (31.9 × 4.47 × 16.99 cm)
Product weight4.2 lb (1.9 kg)
Shipping weight2.88 kg
Package size406 × 286 × 102 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

Questions about this item

What does the 3840x2160 at 30 Hz figure mean when I connect two monitors?

Each display runs at up to 4K resolution but is limited to a 30 Hz refresh rate, so motion will be smoother at lower resolutions.

Which video interface is used and what does it cap in practice?

FlexPort accepts either HDMI or DisplayPort on each of the eight inputs and two outputs, and the link tops out at 4K 30 Hz regardless of cable type.

How much desk space and power does the unit need to fit and run?

The chassis measures 12.57 inches wide, 1.76 inches high and 6.69 inches deep, weighs 4.2 lb, and requires the included 12 V 3 A centre-pin-positive adapter.

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