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Rectangular black metal box with four front buttons and multiple rear ports

STARTECH

STARTECH SV431DPU3A2 4-Port DisplayPort KVM Switch USB 3.0 4K 30Hz

SKU CH-AVF7-4DPEC MPN SV431DPU3A2

A four-port DisplayPort KVM switch with an integrated USB 3.0 hub that shares one 4K 30 Hz monitor, keyboard, mouse and audio across four computers

  • TypeKVM Switchbox
  • PC ConnectorsHost Connectors: 4 x DisplayPort (20 pin) Female Input 4 x U
  • Console Connectors1 x DisplayPort (20 pin) Female Output 1 x 3.5 mm Mini-Jack
  • Computer Connections4 Ports
  • Monitor Connections1 Port
  • Video ResolutionMaximum Digital Resolutions: 3840x2160 @ 30 Hz Supported Res

Computer Connections 4 Ports

Style Single Monitor (4K30)

  • Control four computers from one console with integrated USB 3.0 hub
  • Supports Ultra HD 4K resolution at 30 Hz for sharp visuals
  • Built-in 3.5 mm audio ports allow stereo sound switching
  • Switch instantly using front push buttons or keyboard hotkeys
  • USB 3.0 Type-A ports share peripherals at 5 Gbps speed

Four-Computer DisplayPort KVM

The StarTech SV431DPU3A2 connects four DisplayPort-equipped computers to one monitor, keyboard and mouse. A built-in USB 3.0 hub provides four Type-A ports for shared peripherals such as drives, printers or cameras. Audio switching is handled through 3.5 mm stereo jacks on each host and the console. The unit draws power from an included 12 V 1.5 A external supply.

Suits multi-system workstations

Operators who need to control several desktops or servers from a single 4K 30 Hz display will benefit. Users requiring 4K at 60 Hz, HDR or high-refresh gaming should look elsewhere. The switch only supports DisplayPort video inputs, so systems with HDMI, DVI or VGA outputs cannot be connected without active adapters not supplied.

Simple desktop setup

Connect each computer with a DisplayPort cable, a USB 3.0 Type-B cable and a 3.5 mm audio cable, then attach the console peripherals to the front ports. Switching is done by front-panel push buttons or configurable hot-key sequences. Common issues include forgetting the USB Type-B link, which leaves the shared hub inactive, and exceeding the 30 Hz limit at 3840×2160.

Highlights

  • Control four computers from one console with integrated USB 3.0 hub
  • Supports Ultra HD 4K resolution at 30 Hz for sharp visuals
  • Built-in 3.5 mm audio ports allow stereo sound switching
  • Switch instantly using front push buttons or keyboard hotkeys
  • USB 3.0 Type-A ports share peripherals at 5 Gbps speed

Specifications

BrandStarTech.com
ModelSV431DPU3A2
TypeKVM Switchbox
PC ConnectorsHost Connectors:
4 x DisplayPort (20 pin) Female Input
4 x USB Type-B (9 pin) USB 3.0 Female
4 x 3.5 mm Mini-Jack (3 Position) Female Input
Console Connectors1 x DisplayPort (20 pin) Female Output
1 x 3.5 mm Mini-Jack (3 Position) Female Output
4 x USB Type-A (9 pin) USB 3.0 Female
Computer Connections4 Ports
Monitor Connections1 Port
Video ResolutionMaximum Digital Resolutions: 3840x2160 @ 30 Hz
Supported Resolutions:
1024x768
1280x720 (High-definition 720p)
1920x1080 (High-definition 1080p)
1920x1200
2560x1440
2560x1600
3840x2160 (Ultra HD 4K)
PC SelectionPush Buttons/Hot Keys
LED Indicators4 x port selection/link LEDs
1 x power LED
Audio Features2-Channel Stereo supported
Power FeaturesInput Voltage: 100 ~ 240 AC
Output Current: 1.5 A
Output Voltage: 12 DC
Plug Type: M
Power Consumption (In Watts): 18W
USB Featureswith USB support
FeaturesEasily share peripheral devices using the built-in USB 3.0 hub
Astonishing picture quality with support for Ultra HD 4K resolutions
Full multimedia control with separate 3.5 mm auxiliary support
No software or drivers required
Independent HID keyboard and mouse ports
Dimensions8.70" x 5.10" x 1.70"
Weight3.60 lbs.
Shipping weight1.59 kg
Package size297 × 246 × 86 mm

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Questions about this item

My four computers only have HDMI outputs — can I connect them to the DisplayPort inputs on this KVM?

The unit provides four DisplayPort inputs; HDMI sources would need an active HDMI-to-DisplayPort converter for each computer.

I plan to keep my older 1080p monitor — will the switch downscale 4K sources to 1920x1080 automatically?

Yes, 1920x1080 is a supported resolution and the switch will pass that signal to the monitor.

After cabling everything, how do I confirm the USB 3.0 hub is running at 5 Gbps rather than falling back to USB 2.0?

Check Device Manager on the active computer; the hub should appear as a USB 3.0 root hub and connected peripherals will show SuperSpeed.

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