StarTech.com

4 Port Professional USB PS/2 KVM Switch

Control up to four USB or PS/2-connected computers from one keyboard, mouse and monitor

Product ID: SV431H

  • A dependable 3-year warranty provides peace of mind.
  • Hot-plug to allow computers to be added or removed without worrying about having to reboot the other connected systems.
  • Designed for guaranteed compatibility with Dell, Compaq, IBM and HP servers and systems.
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  • Compatible with all notebook computers.
  • "Keep-alive" feature draws power from PC keyboard ports if power is lost. Switch will continue to operate during power outage even it it loses power, retaining mouse control.
  • Rugged, all-metal 1U chassis for use in harsh environments and space-saving cabinets.
  • Fast switch-buttons for each port provide quick access to any connected system.
  • High 1920x1440 resolution capability supports the most demanding applications.
  • Uses standard off-the-shelf cables or StarTech.com tangle-fee KVM cables to connect PCs to the switch
  • Can be cascaded to control up to 12 PCs
  • Supports PCs requiring either PS/2 or USB keyboard/mouse
$235.99 CDN
Not Available
May be in stock with partners

Overview

This 4 USB+PS/2 KVM Switch offers a professional-grade computer management tool that allows you to control up to 4 directly connected computers from one source, with support for display resolutions of up to 1920x1440 - a perfect solution for high-res applications.

A versatile KVM solution, the switch can be used to control computers that support either USB or PS/2 connections (mouse, keyboard), and offers a scalable method of managing connected systems using cascaded installation (using multiple KVM switches).

Offering broad compatibility, the KVM switch is designed to work with Dell, Compaq, IBM and HP servers and all PC notebook computers, ensuring a smooth and reliable operating experience.

The KVM switch features a durable all-metal body that is suitable for virtually any operating environment including corporate or industrial operating applications.

This professional-grade USB+PS/2 KVM Switch provides reliable computer management and is backed by StarTech.com's 3-year warranty.

Rackmount your KVM switch

If you’d like to mount this KVM switch to your server rack, StarTech.com offers a 1U Rackmount Bracket (sold separately) that turns this KVM into a rackmountable KVM.

The StarTech.com Advantage

  • Unparalleled reliability.
  • Ultra-compatible.
  • Powerful features that increase usability.

Applications

Server control

Datacenter computer control

Manufacturing computer control

PC test/burn-in computer control

Technical Specifications

Warranty Information
Warranty 3 Years
Hardware
Audio No
Cables Included No
Daisy-Chain Yes
Industry Standards DDC2B
KVM Ports 4
Number of Monitors Supported 1
PC Interface USB and PS/2
PC Video Type VGA
Rack-Mountable Optional
U Height 1U
Performance
Auto Scan 3, 8, 15 & 30 seconds
DVI Support No
Hot-Key Selection No
IP Control No
Maximum Analog Resolutions 1920 x 1440
Maximum Cable Length VGA-100ft(30m)
PS/2-90ft(27.4m)
USB-15ft(5m)
Maximum Cascaded Computers 12
Maximum Number of Users 1
Connector(s)
Console Interface(s) 1 - VGA (15 pin, High Density D-Sub) Female
2 - PS/2 (6 pin, Mini-DIN) Female
Host Connectors 3 - PS/2 (6 pin, Mini-DIN) Female
4 - USB B (4 pin) Female
4 - VGA (15 pin, High Density D-Sub) Male
Power
Center Tip Polarity Positive
Input Current 0.2A
Input Voltage 110V-240V AC
Output Current 0.6A
Output Voltage 9 DC
Plug Type M
Power Source AC Adapter Included
Physical Characteristics
Color Black
Enclosure Type Steel
Product Depth 5.1 in [130 mm]
Product Height 1.7 in [44 mm]
Product Length 8.6 in [219 mm]
Product Width 8.7 in [220 mm]
Packaging Information
Shipping (Package) Weight 4 lb [1.8 kg]
What's in the Box
Included in Package 1 - 4 Port Hybrid PS2 / USB KVM
3 - Y-Splitter Cables (KYC1MF)
4 - Rubber Feet
1 - Power Adapter
1 - Instruction Manual

Certifications

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Accessories

Product Support

Frequently Asked Questions

Before You Buy

Whether a specific mouse or keyboard will work with StarTech.com KVM switches can depend on the type of mouse or keyboard you use.  Any mice with additional functionality or keyboards that are not standard 104 key keyboards could cause issues.  This includes wireless, gaming, combination (one USB receiver for both the mouse and keyboard), and Apple keyboards.  We recommend that you use a standard wired mouse and keyboard with our KVM switches, especially when you troubleshoot issues.

If you cannot get a specific mouse or keyboard to work with your KVM switch, connect the mouse or keyboard into the USB hub ports, if available (they are marked on the back of the KVM switch). If the KVM switch has hotkey functionality, you will lose the functionality when using these hub ports.

Installation

  1. Turn off all of the computers and monitors that will be connected to the KVM switch.
  2. Connect the power adapter to the KVM switch.
  3. Connect the video cables from your monitors to the console video port on the KVM switch. 
  4. Turn on the monitors.
  5. Connect your keyboard and mouse to the console PS/2 or USB ports on the KVM switch.
  6. If you have not done so already, change the KVM switch to focus on port 1.
  7. Connect the video cables from PC1 to the KVM switch.
  8. Connect the PS/2 or USB cables from PC1 to the PC1 PS/2 or USB ports on the KVM switch.
  9. Turn on PC1. You should see the computer load the operating system that you are using on PC1.
  10. Make sure that the mouse and keyboard can control PC1.
  11. Repeat steps 4 to 8 for each additional computer that you want to connect to the KVM switch. Leave the computer in focus until you make sure that the mouse and keyboard can control the computer in step 8.

Troubleshooting

There are some quick tests that you can perform to rule out potential issues. Start by turning off all of the connected computers and peripherals, unplugging everything from the KVM, including power, and leaving it for 10 seconds.  Then connect everything to the KVM following the procedure in the following FAQ: https://www.startech.com/faq/kvm-switches-setup.

You can test to make sure that the following components are working correctly and are not the source of the issue:

  • Video cables

  • KVM switch

  • Video source (such as a DVR or computer)

  • Video destination (such as a monitor or projector)

Note: When you are testing your setup components, it is recommended that you avoid using any video adapters. For example, if you are converting a VGA source to HDMI to be used with an HDMI extender, you should test with an HDMI source.

To test your setup components, try the following:

  • Use the video cable, KVM switch, video source, and video destination in another setup to see if the problem is with the components or the setup.

  • Use a different video cable, KVM switch, video source, and video destination in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.

When you test your cables, it is recommended that you do the following:

  • Test each cable individually.

  • Use short cables when you are testing.

When you test the video source and video destination, it is recommended that you do the following:

  • Remove the KVM switch from your setup and test to make sure that the video source and video destination work together without the KVM switch.

  • Test to make sure that the video source and video destination work together at the resolution that you want to use.

Note: In order for your setup to work properly, the video source, KVM switch, and video destination all need to support the resolution that you are using.

There are four troubleshooting actions that you can try if some but not all of the ports and your computer are working with the KVM switch. 

  • To determine if a specific cable is the source of the problem, switch the cables that connect the KVM switch to the computers to one working port and computer, and one port and computer that is not working. Keep the computer plugged into the same ports and only switch the cables. If the issue persists when you switch cables, the issue may be with the cable itself.
  • To determine if the problem is between the computer and the KVM switch, using the same cables, connect the KVM switch to one computer that is working and one computer that is not working. If the issue persists when you switch computers, follows the issue may be with the computer and the KVM switch.
  • Try reinitializing the KVM.  This is done by following the setup instructions on the website.
  • To determine if the KVM switch is the source of the problem, if you have another KVM switch, disconnect the current KVM switch and connect the second KVM switch.

If the keys on your keyboard are repeating, complete the following:

  1. If the KVM you are using has USB ports, you can move your keyboard to the USB hub port on the back of the KVM (the USB hubs are marked).

Note: When you move the keyboard out of the keyboard port, you will not be able to access the hotkeys.

  1.  You can adjust the typematic rate in your operating system’s settings. Depending on the version of Windows you are running, you can adjust the typematic rate by doing one of the following:
    • Click Control Panel > Keyboard > Speed. Adjust the repeat delay and repeat rate until the keys no longer repeat.
    • Click Control Panel > Hardware and Sound > Devices and Printers. Right-click Keyboard Settings. Adjust the repeat delay and repeat rate until the keys no longer repeat.
4 Port Professional USB PS/2 KVM Switch

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