Product search
Discontinued

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

0 stars (0 reviews) |
  • A dependable 3-year warranty provides peace of mind.
  • Supports PCs requiring either PS/2 or USB keyboard/mouse
  • Can be cascaded to control up to 12 PCs

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 SV431RACK (sold separately) that turns this KVM into a rackmountable KVM.

This product is TAA compliant and is backed by a Startech.com 3 year warranty with lifetine technical support.

Applications

  • Datacenter computer control
  • Server control
  • PC test/burn-in computer control
  • Manufacturing computer control

The StarTech.com Advantage

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

Partner Numbers

  • ASI 87393
  • D&H SV431H
  • SYNNEX US STA-SV431H
  • UPC 065030789097

Specifications

Warranty Information Warranty 3 Years
Connector(s) 2 - Console Interface(s) PS/2 (6 pin, Mini-DIN)
1 - Console Interface(s) VGA (15 pin, High Density D-Sub)
4 - Host Connectors USB B (4 pin)
VGA (15 pin, High Density D-Sub)
3 - Host Connectors PS/2 (6 pin, Mini-DIN)
Hardware Audio No
KVM Ports 4
PC Interface USB and PS/2
PC Video Type VGA
Number of Monitors Supported 1
Rack-Mountable Optional
Cables Included No
U Height 1U
Industry Standards DDC2B
Daisy-Chain Yes
Packaging Information Package Length 14.8 in [37.5 cm]
Package Width 6.2 in [15.7 cm]
Package Height 8.1 in [20.7 cm]
Shipping (Package) Weight 4.0 lb [1.8 kg]
Performance DVI Support No
IP Control No
Hot-Key Selection Yes
Maximum Cable Length VGA-100ft(30m)
PS/2-90ft(27.4m)
USB-15ft(5m)
Maximum Analog Resolutions 1920 x 1440
Auto Scan 3, 8, 15 & 30 seconds
Maximum Number of Users 1
Maximum Cascaded Computers 12
Physical Characteristics Weight of Product 0.0 oz [0.0 g]
Color Black
Material Steel
Product Length 8.6 in [21.9 cm]
Product Width 8.7 in [22.0 cm]
Product Height 1.7 in [44.0 mm]
Product Depth 5.1 in [13 cm]
Power Power Source AC Adapter Included
Input Voltage 110V-240V AC
Input Current 0.2A
Output Voltage 9V DC
Output Current 0.6A
Center Tip Polarity Positive
Plug Type M
What's in the Box 1 - Included in Package 4 Port Hybrid PS2 / USB KVM
3 - Included in Package Y-Splitter Cables (KYC1MF)
4 - Included in Package Rubber Feet
1 - Included in Package Power Adapter
Instruction Manual

Accessories

Discontinued
Your price
$33.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SVPS23N1_15

15 ft 3-in-1 Universal PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single cable

Your price
$25.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SVPS23N1_10

10 ft 3-in-1 Universal PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single cable

Your price
$16.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SVPS23N1_6

6 ft 3-in-1 PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single cable

Your price
$16.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
Your price
$6.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SV125

Sun to PS/2 Keyboard Mouse Console Converter Adapter

Connect Sun™ workstations and servers to any PS/2 KVM switch or extender

Your price
$82.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SVPOWER

Replacement 9V DC Power Adapter for KVM Switch

Replace, or keep a spare 9V DC (0.6 A) KVM switch power adapter on hand

Your price
$12.99USD

Check reseller availability

Where to buy StarTech.com products
SV565UTP

USB PS2 KVM Console Extender Cat5 Extender - 500 ft

Operate a USB or PS/2 & VGA KVM or PC up to 500ft away as if it were right in front of you

Your price
$228.99USD

In stock: US: 41 | CA: 10

Where to buy StarTech.com products
SV431RACK

1U Rackmount Brackets for KVM Switch (SV431 Series)

Mount a 1U SV431 Series KVM switch into your server rack or cabinet

Your price
$38.99USD

In stock: US: 29 | CA: 16

Where to buy StarTech.com products
SVUSB2N1_15

15 ft 2-in-1 Universal USB KVM Cable

Connect VGA and USB-equipped computers to a KVM Switch using a single cable

Your price
$29.99USD

In stock: US: 288 | CA: 15

Where to buy StarTech.com products
SVUSB2N1_10

10 ft 2-in-1 Universal USB KVM Cable

Connect VGA and USB-equipped computers to a KVM Switch using a single cable

Your price
$21.99USD

In stock: US: 0 | CA: 13

Where to buy StarTech.com products
SVUSB2N1_6

6 ft 2-in-1 USB KVM Cable

Connect VGA and USB-equipped computers to a KVM Switch using a single cable

Your price
$15.99USD

In stock: US: 1910 | CA: 210

Where to buy StarTech.com products
Discontinued
PS23N1THIN50

50 ft 3-in-1 Universal Ultra Thin PS/2 KVM Switch Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single ultra-thin cable

Your price
$97.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
PS23N1THIN15

15 ft 3-in-1 Universal Ultra Thin PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single ultra-thin cable

Your price
$21.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
Your price
$18.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
PS23N1THIN6

6 ft 3-in-1 Universal Ultra Thin PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single ultra-thin cable

Your price
$16.99USD

Check reseller availability

Where to buy StarTech.com products
Discontinued
SVPS23N1_50

50 ft 3-in-1 Universal PS/2 KVM Cable

Connect VGA and PS/2-equipped computers to a KVM Switch using a single cable

Your price
$73.99USD

Check reseller availability

Where to buy StarTech.com products

Drivers/Downloads

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Manual(s):

Datasheet

Product Support

Talk to an Advisor

We are always ready to assist you with any questions you may have.

Live Chat (opens in new window)

Frequently Asked Questions

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

Monitors may begin flickering when they receive a signal of insufficient quality. There are a few potential fixes available that will help to improve the signal quality in order to eliminate flickering:

  • Replace Video Cables with high-quality Video Cables (e.g. upgrade DisplayPort 1.2 Cables to DisplayPort 1.4 Cables).
  • Use shorter Video Cables to reduce signal attenuation.
  • When possible, remove Video Adapters to use native Video Connection Types (e.g. go from VGA to VGA, or DisplayPort to DisplayPort)
  • For DisplayPort Monitors, try changing the DisplayPort Version on the Monitor. For information on how to change your Monitor Settings refer to the Manual from the Monitor Manufacturer.
  • Update the Drivers for the Computer’s GPU to the latest available from the Monitor Manufacturer.

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.

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.

Compliance and safety

Compliance letters

Safety Measures

  • If product has an exposed circuit board, do not touch the product under power.
  • If Class 1 Laser Product. Laser radiation is present when the system is open.
  • Wiring terminations should not be made with the product and/or electric lines under power.
  • Product installation and/or mounting should be completed by a certified professional as per the local safety and building code guidelines.
  • Cables (including power and charging cables) should be placed and routed to avoid creating electric, tripping or safety hazards.
*Product appearance and specifications are subject to change without notice.

Customer Reviews

(0 reviews)
0 out of 5 stars
  • 5 (0)
  • 4 (0)
  • 3 (0)
  • 2 (0)
  • 1 (0)
Tell us what you think of this product.
Need a little help getting started?

Check out our review guidelines.

Wait...
Back to top