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Silver 1U rack-mount KVM switch with front push buttons and LED indicators

STARTECH

STARTECH SV431DUSBU 4 Port 1U Rack Mount USB KVM Switch

SKU CH-KDK6-KJCKZ MPN SV431DUSBU

Controls four VGA and USB computers from one keyboard, mouse and monitor in a 1U rack unit

  • TypeD-Sub, USB
  • PC Connectors4 x High Density DB15 (VGA) Female
  • Console Connectors1 x High Density DB15 (VGA) Female 2 x USB A Female
  • Computer Connections4 Ports
  • Video Resolution1920 x 1440@60Hz (1920 x 1200@60Hz - Wide Screen)
  • PC SelectionPush Buttons/Hot Keys/OSD

Computer Connections 4 Ports

Style Single Monitor - USB

  • Control 4 computers from one console using push buttons, hot keys or on-screen display
  • 1U rack-mount design fits standard server cabinets for space-efficient deployment
  • Supports VGA video up to 1920 x 1440 at 60 Hz for clear display output
  • USB keyboard and mouse share a single connection per computer for simplified cabling
  • Auto-scan function cycles through connected systems automatically for hands-free monitoring

4-Port 1U Rack-Mount USB KVM Switch

This StarTech.com SV431DUSBU lets you manage four USB-equipped computers from one USB keyboard, mouse and VGA monitor. It fits a standard 1U rack space and is aimed at datacentres, server farms, co-location sites and test labs that need single-console administration. The unit includes the required power adapter and unique cables for a secured connection between each computer and the switch.

Installation and common issues

The switch mounts in a 1U rack slot and connects to each computer through the supplied High Density DB15 and USB cables; console peripherals plug into the front-panel DB15 and two USB Type-A ports. Selection is made by front push-buttons, keyboard hot-keys or the on-screen display. A frequent issue is mismatched cable length or loose DB15 screws causing intermittent video; ensure all connectors are fully seated and secured before powering on.

Practical limits of VGA and USB console

Video output tops out at 1920 x 1440 at 60 Hz, with 1920 x 1200 at 60 Hz for widescreen formats; higher resolutions or refresh rates are not supported. The console keyboard and mouse share a single USB connection, so only standard USB HID devices are guaranteed to work — advanced gaming peripherals or multi-function USB hubs may not function correctly. The unit operates between 5 °C and 40 °C at up to 80 % relative humidity.

Highlights

  • Control 4 computers from one console using push buttons, hot keys or on-screen display
  • 1U rack-mount design fits standard server cabinets for space-efficient deployment
  • Supports VGA video up to 1920 x 1440 at 60 Hz for clear display output
  • USB keyboard and mouse share a single connection per computer for simplified cabling
  • Auto-scan function cycles through connected systems automatically for hands-free monitoring

Specifications

BrandStarTech.com
ModelSV431DUSBU
TypeD-Sub, USB
PC Connectors4 x High Density DB15 (VGA) Female
Console Connectors1 x High Density DB15 (VGA) Female
2 x USB A Female
Computer Connections4 Ports
Video Resolution1920 x 1440@60Hz (1920 x 1200@60Hz - Wide Screen)
PC SelectionPush Buttons/Hot Keys/OSD
LED Indicators1 x Green - Power
4 x Green - Online PC
4 x Red - Selected PC
Temperature5&degC to 40°C (41°F to 104°F)
Humidity80% RH
Power FeaturesPower Adapter Included: Yes
Input Voltage: 110 ~ 240 AC
Output Voltage: 9 DC
Output Current: 500mA
ApplicationCo-location/ISP computer control
Datacenter computer control
Manufacturing line computer control
PC test/burn-in computer control
Server farms
Software QA labs
FeaturesUSB Keyboard and Mouse combo kits supported on one USB connection
Unique cables for secured connection
A dependable 3-year warranty provides peace of mind
Auto-scan function automatically selects computer sequentially
Hotkey functions allow easy computer access
Identifies and selects computers by the names assigned
Keyboard and mouse console is USB interface
OSD security option allows certain PCs to be password protected from unauthorized use
Plug-and-play system configuration
Rugged, all-metal 1U chassis for use in harsh environments and space-saving cabinets
Supported Wide Screen R
Dimensions1.69" x 8.66" x 5.12"
Weight3.31 lb
Shipping weight1.56 kg
Package size409 × 208 × 89 mm

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Questions about this item

How can I confirm the KVM switch is operating correctly after connecting four PCs and a USB keyboard, mouse and VGA monitor?

The green power LED should be lit and the red selected-PC LED for the active port will illuminate; use the push buttons, hot-key sequence or OSD menu to cycle through all four ports and verify video appears at up to 1920 x 1440@60Hz on the shared monitor.

Which cables and accessories are included in the box versus what I must purchase separately for a four-PC setup?

The unit ships with the 9 V DC 500 mA power adapter; the four proprietary DB15-to-USB KVM cables required to link each computer are sold separately.

The product line shows several port counts — why choose the four-port version over the eight- or sixteen-port models?

The SV431DUSBU provides exactly four computer ports in a 1U rack-mount chassis measuring 1.69 x 8.66 x 5.12 inches and weighing 3.31 lb, matching smaller server-farm or lab deployments where only four USB-and-VGA systems need single-console control.

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