8 Port USB VGA IP KVM Switch with Virtual Media

Control up to 8 USB VGA computers remotely over an IP network or the Internet

Product ID: SV841DUSBI

1 stars (1 reviews) |
  • Remote, BIOS level access to all connected systems
  • Works with PC, Mac®, Linux® and Sun® Computer Systems
  • Supports DHCP or manual IP configuration

The SV841DUSBI 8-Port USB VGA IP KVM Switch with Virtual Media enables secure local and remote control of up to 8 computers, over a LAN or the Internet. With 2 additional USB ports for peripheral sharing (USB storage, CD ROM, etc.), the KVM Switch offers a convenient solution for file transfers and disk emulation for remote applications and OS installs.

The IP KVM Switch enables BIOS level control and full boot process interaction, and includes several security features (SSH, SSL, RADIUS and a configurable firewall) to keep your network safe.

This highly versatile KVM can interact with virtually any device that uses an RS232 serial terminal (routers, switches, PDUs, etc.), using the (sold separately), and features a durable metal chassis.

The SV841DUSBI USB VGA IP KVM Switch is backed by a StarTech.com 3-year warranty and free lifetime technical support.


  • BIOS level remote access to servers at co-location facilities and ISPs
  • Create a scalable, streamlined access solution in your Datacenter or Server Farm
  • Enables access to existing KVM switches via TCP/IP for single console remote administration
  • Perfect for manufacturing line computer control, simplifying access to multiple systems
  • Great for remote access to test PCs/burn-in computers saving the desk space required for multiple monitors, keyboards and mice
  • Remote access for outsourced server / IT hardware management
  • Remote access to mission-critical corporate datacenter servers, increasing uptime

The StarTech.com Advantage

  • Virtual media support allows a user to remotely copy files, or even install an operating system to a new or disabled machine
  • Full BIOS level remote access enables you to reboot a connected PC or server, access the BIOS, and have full control over the keyboard and mouse as if you are on-site
  • User-friendly access through the On-Screen Display or the integrated web server saves configuration time and frustration

Partner Numbers

  • UPC 065030845762


  • OS Independent logo
OS independent; No software or drivers required


Warranty Information Warranty 3 Years
Environmental Operating Temperature 0°C to 40°C (32°F to 104°F)
Storage Temperature -20°C to 60°C (4°F to 140°F)
Humidity 0~80% RH
Hardware Audio No
KVM Ports 8
PC Interface USB
PC Video Type VGA
Number of Monitors Supported 1
Rack-Mountable Optional
Cables Included Yes
Daisy-Chain No
Packaging Information Package Length 59 cm [23,2 in]
Package Width 26,5 cm [10,4 in]
Package Height 90 mm [3,5 in]
Shipping (Package) Weight 4,6 kg [10,2 lb]
Performance On-Screen Display Yes
DVI Support No
IP Control Yes
Hot-Key Selection Yes
Maximum Analog Resolutions 1920 x 1440 pixels local console
Maximum Digital Resolutions 1600 x 1200 @ 85Hz
Maximum Number of Users 1 active user plus up to 4 viewing
Port Selection Support Hotkeys and OSD (On Screen Display)
General Specifications TLS version supported: 1.0
Note: The SSL certificate provided is for testing and initialization purposes only and provides minimum strength security. We strongly recommend users upgrade the included certificate with individual SSL Certificate.
Physical Characteristics Color Black
Material Steel
Product Length 20 cm [7,9 in]
Product Width 18,7 cm [7,4 in]
Product Height 4,4 cm [1,7 in]
Weight of Product 1,3 kg [2,9 lb]
Power Power Source AC Adapter Included
Input Voltage 110V-240V AC
Input Current 1.8A
Output Voltage 12V DC
Output Current 1.5A
Center Tip Polarity Positive
Plug Type M
Power Consumption (In Watts) 18
Software OS Compatibility OS independent; No software or drivers required
Special Notes / Requirements Note

Adding more than 1 optional PCM815SHNA power switch to the Server Remote Control requires a RPORT module.

Source code for the unit operating system is available upon request. Please contact us by phone, live chat, or email to make your request.

This offer is valid for three years from the date of purchase and/or for as long as parts or customer support is offered for this product.

Charges for the reasonable cost of copying and/or conveying may apply.

What's in the Box 1 - Included in Package 8 Port IP KVM Switch
Instruction Manual
4 - Included in Package 10ft (3m) KVM Cables
6ft (1.8m) KVM Cables
3 - Included in Package Universal Power Adapter (NA/UK/EU)



1U Rack Mount Brackets for the SV841DUSBI KVM Switch

Mount the SV841DUSBI KVM switch into a standard server rack, in either a one or two-across configuration

Your price
€36,99 EUR excl. VAT
€45,87 EUR incl. VAT

6 ft Ultra-Thin USB VGA 2-in-1 KVM Cable

Connect VGA video and USB using a single thin KVM cable

Your price
€13,99 EUR excl. VAT
€17,35 EUR incl. VAT

10 ft Ultra-Thin USB VGA 2-in-1 KVM Cable

Connect VGA video and USB using a single thin KVM cable

Your price
€19,99 EUR excl. VAT
€24,79 EUR incl. VAT


Talk to an Advisor

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

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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


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.

To resolve this issue, do the following:

  1. Click Start.
  2. Click Control Panel.
  3. Click Hardware and Sound.
  4. Click Mouse.
  5. Click Pointer Options.
  6. Clear the Enhance pointer precision check box.
  7. Click Apply and then click OK.
  8. In the KVM Bribar menu, click the Mouse Re-sync option.

To resolve this issue, do the following:

  1. Click Start.
  2. Click Control Panel.
  3. Click Mouse.
  4. Click Pointer Options.
  5. Clear the Enhance pointer precision check box.
  6. Click Apply and then click OK.
  7. In the KVM Bribar menu, click the Mouse Re-sync option.
  1. Set the mouse acceleration slider to one bar left of center.
  2. Set the Sensitivity slider to the lowest possible option.
  3. Make sure that your startup script (for example, xinitrc or xsession) contains the line xset m 0/0 0.
  4. Restart the computer.
  5. Perform a mouse and PS/2 or USB re-sync.

Make sure that the screen resolution (even in text mode) is at least 1024 x 768. Resolutions that are less than that can cause the mouse to not sync, no matter what is done. In Linux text-mode, setting kernel flags in your boot loader (for example, GRUB) will help to set this.

In order to resolve this issue, do the following:

  1. Increase the resolution on the computer to 800 x 600 or higher.
  2. To make sure that you have the latest firmware installed on the KVM switch, navigate to the web interface for the KVM switch and if necessary, update the firmware to the latest version.

In order to resolve this issue, do the following:

  1. Move a computer connected to the KVM switch to the port that the KVM switch is stuck on.
  2. Try switching off of the port again. You should now be able to switch the KVM switch off of the port that it was stuck on.

This device has Dynamic Host Configuration Protocol (DHCP) enabled by default, and will be assigned an IP address by your router when connected to your network. View the router's DHCP table to determine the IP address.

If  this IP KVM switch does not detect a DHCP server this device's default static IP address is

  1. Make sure that the IP KVM switch is on the same network as your computer.
  2. In an Internet browser, enter the IP address of the unit. The default static IP address is

Note: This device has the option of enabling Dynamic Host Configuration Protocol (DHCP) during the initial setup. If enabled, the device will be assigned an IP address by your router when connected to your network. View the router's DHCP table to determine the IP address.

  1. In the user name field, enter the user name. The default user name is admin.
  2. In the password field, enter the password. The default password is admin.

Before You Buy

KVM stands for Keyboard Video Mouse and KVM switches allow you to switch the use of a keyboard, display and mouse between multiple computers.  KVM switches also commonly let you switch audio and USB devices between computers.

There are different types of KVM switches as well.

  • Standard box KVM switches. (e.g. SV231USB)
  • Cable KVM switches. (e.g. SV211USB)
  • Multi-Monitor KVM switches.  (e.g. SV231DDUSB)
  • IP KVM switches. (e.g. SV841HDIE)

Standard box and cable KVM switches are a simple way to switch the use of a keyboard, display, and mouse between multiple computers.  Multi-monitor KVM switches allow you to switch multiple displays between computers, and IP KVM switches allow you to remotely control the KVM switch and connected computers over a network.

Here are some important things to consider before purchasing a KVM switch.

  • How many computers do you need to control?  Purchase a KVM switch that supports the number of computers in your setup.
  • Which video connections do your computers and display(s) support?  It is best practice to use the same video connections wherever possible.
  • Will you be using a PS/2 or USB mouse and keyboard?
  • Do you need multiple monitor support?  Ensure every computer can support the number of monitors you are looking to use in your setup.
  • Do you need audio support?
  • What resolution(s) do you want your display(s) running at?  The KVM switch must support the resolution(s) you want to use.
  • Would you like hotkey support?  Some KVM switches support the use of hotkey combinations to complete tasks such as switching between computers.

There are a couple of other important things you may want to take note of:

  • Some KVM switches require proprietary cables to function.  These KVM cables may vary by each KVM switch.  For StarTech.com KVM switches that require proprietary cables, the KVM switches will either come with these cables, or they will be listed in the Accessories tab on the individual product pages.  For more information, see our video dedicated to KVM switch cables.
  • Basic mice and keyboards are recommended for use with KVM switches.  Wireless, gaming or combo mice and keyboards (mice and keyboards that use a single USB connection / receiver for both units) can cause performance issues, and in general, are not supported for use with KVM switches.

It can be difficult to tell which ones are right for the KVM switch you are interested in.  How can you tell which KVM cables you require?  How can you tell if a KVM switch requires proprietary cables?  How do these cables work? 

Standard KVM Switches and Cables

Note: You will need one bundle of KVM cables per computer you want to connect to the KVM switch.

Standard KVM switches have no special cable requirements.  If you have spare video and PS/2 or USB cables, you can use them to hook up the KVM switch to your computers.  StarTech.com still sells KVM cable packages, but they are just for the convenience of buying them in bundles and usually involve some savings.  Keep in mind that even if you have some of the cables you need, it still might be advantageous to buy the bundle.

KVM Switches with Opposite Gender Video Connections

Some KVM switches use male video connections for the computers and female video connections for the console ports.  In this case you simply need a video extension cable, or a KVM cable package appropriate to the KVM switch.  This is so you cannot accidentally plug cables from your computer into the console ports.

KVM Switches Requiring Proprietary Cables

KVM switches can also use proprietary KVM cables to connect to the individual computers.  This is often done with larger KVM switches and KVM switches intended for a server environment.  These cables use a proprietary pinout which does not conform to the video standard in use, as the cable carries both the video and PS/2 or USB data along a single cable.

If you are unsure whether or not you need special cables, complete the following:

  1. Check the Technical Specifications tab on the individual product pages for What's in the Box.  This section lists everything that comes with your purchase, and your KVM switch might come with the cables.
  2. Check the Accessories tab.  This section lists potential accessories for the product you are looking at.  StarTech.com will list the appropriate KVM cables for the KVM switch here. 
  3. Check the Gallery and look at a picture of the back of the KVM switch.

Note: If there are no PS/2 or USB ports on the back of the KVM switch other than for the console, you will require proprietary cables.

If at this point you require further assistance in deciding which cables to purchase with your StarTech.com KVM switch, contact our technical support team.  

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.

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By: ajtravis - 12/22/2020
I bought a used Startech SV841DUSBI of eBay with confidence because I know that Startech offer 'lifetime' support and I've bought a lot of Startech products both new and used, which I have been very pleased with. Not, however, the Startech SV841DUSBI. In principle, buying an old/discontinued IP-KVM is not a problem because one of the main selling-points of the SV841DUSBI is that the firmware can be upgraded. However, when I used the Startech Web GUI on the SV841DUSBI to download the latest firmware from a URL generated by the Web GUI and attempted to update the firmware following the instructions TO THE LETTER it resulted in a 'bricked' device. Startech support were very sympathetic and helpful, but could not tell me how to re-install the firmware from scratch. This was certainly done during manufacture but, because it is a discontinued product, Startech support could not help me fix the device. If you buy one of these DO NOT FLASH THE FIRMWARE.
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