StarTech 2 Port USB VGA KVM Switch with DDM Fast Switching Technology and Cables

SKU: STV231USBDDM MFR: SV231USBDDM
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Key Features

  • Control two VGA USB computers with this 2-port KVM switch, saving space on your desk.
  • Enjoy fast switching between computers with Dynamic Device Mapping (DDM) KVM technology.
  • This USB VGA KVM supports high resolutions up to 1920x1440 for clear, crisp images.
  • Use hot-key or push-button controls for easy KVM access, increasing your workflow efficiency.
  • Includes all required KVM cables and a universal power adapter for simple setup and use.
  • Durable steel enclosure ensures long-lasting performance of this reliable KVM switch.
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Questions & Answers

Reviews about this item

Review Summary

2024-10-16T20:00:00

Rated 4 out of 5

nice product

i like how the switch functions but is it possible to switch between pc remotely(without having to open the rackmount housing and push front panel buttons for instance)

h3rk0

2023-05-12T20:00:00

Rated 1 out of 5

Awful!

USB Type B input for second PC conistently fails randomly. I've proved it by simply switching the cable in to the first input and it works fine. I've tried everything. There appears to be no easy way to force the unit to reset. Only method is literally unplugging every monitor cable and and reinserting in specific order to get it to work again.

fippy

2022-12-26T19:00:00

Rated 3 out of 5

Great in theory, lacks a little in application.

I work on a site where we have two different computers systems and two different computers for them so being able to switch between both and use dual screens was a big advantage for me. The setup was easy enough, just plugged in and away I went. I've been using a few weeks now, and its working okay just have the one issue that every time I switch computers it reset all open apps to the one monitor, would of been nice if it would let the computers remember what was on each screen instead of having to move the programs every switch.

Ads76

2022-08-24T20:00:00

Rated 2 out of 5

Works simply, but has USB problems

I used this unit to switch between my work laptop and home computer. The switching with the button works fine. At first everything worked fine, but I heard a hum on the one device's audio during calls. After some diagnosing I realized that the hum was caused by the USB bus My keyboard has a processor on board for remapping and such. This keyboard started failing after some time and is now completely broken. The cause of the problem only became clear after my second keyboard broke. These are expensive keyboards and it is a great pity that this unit caused this problem for me. My advice, do the USB switching with a mechanical switch and power the device via an independent USB power supply. This does partly negate purpose of the switch...

usbbug

2022-02-17T19:00:00

Rated 5 out of 5

So far so good!

I bought this unit to replace a ConnectPro KVM that had started squealing and affecting my peripherals. No problem with setup as I just copied the way the previous KVM was connected. Works fine, no problems, but it's only day one. :

Colleen

2021-12-26T19:00:00

Rated 3 out of 5

Works - sort of.

Bought this early in the pandemic to adapt my desk to both personal and work computers. From day 1 I've had issues with the USB peripherals. The mouse port has never worked when switching, so I've had to plug a wired mouse into the generic shared USB port. Dual displays have been highly inconsistent, and frequently I would have to reboot my laptop after I switched to it in order for one of the displays to detect properly - but don't you dare let the monitor go to sleep as it will be detected wrong again on waking.

darrelh

2021-09-24T20:00:00

Rated 5 out of 5

Very user friendly and simple to install

I bought this years ago and it is Very user friendly and simple to install and very effective too.Will highly recommend it to all.

Trustworthylion

2021-09-22T20:00:00

Rated 5 out of 5

Perfect for my use!

I've been using this unit for several years (for Audio and Video production) and have been completely satisfied with the product.

Yanoska

2021-08-21T20:00:00

Rated 5 out of 5

3+ years in and only 2 gripes

I've used my KVM going on 4 years now and have never had a single performance issue and we order these for other employees. My gripes (more wishes, really) more space between the DVI connections on back and of course USB 3.0 which was long since available when we ordered. Most of our monitors and PCs in use are DVI and now we're seeing more DP connections come in and so far OK so long as the monitor has DVI obviously. Very happy and highly recommend if your monitor(s) are DVI.

Harpern78

2021-05-01T20:00:00

Rated 1 out of 5

Garbage... What use does this have?

I learned something new this week: EDID, or Extended Display Identification Data, is used by the computer to determine it is connected to an external display. Without it, the computer thinks it is not connected. When using a KVM switch, if EDID data isn't reported to the computer, such as when switching between machines, the computer defaults its desktop (at least under Windows). This device does not mimic EDID data; therefore, switching causes the computer to think it has lost its display. EDID Emulation is available, better KVM devices offer it. StarTech is not a "better KVM device", however. They recommend that after buying their overpriced box, that one goes and buys external EDID emulators to overcome this problem - instead of just engineering it into their product. I have to say I'm disappointed; this isn't a cheap import - it is supposed to be a quality device; though I learned this is not the case. Furthermore, I've noticed continued issues when switching. More than half of the time, when I switch, the displays don't come up. I have to switch back and forth numerous times to get the monitors to be recognized. When doing so many switches, I've also noted that keyboard and mouse functions have gotten weird. The mouse wheel will often stop working, the keyboard doesn't register; and the only solution left is to reboot. I am absolutely unimpressed - I strongly recommend individuals consider alternative vendors and avoid the frustrations that I and others have had with this manufacturer. Hopefully, they'll get their act together and fix their faulty designs.

Frustrated2021

2021-01-10T19:00:00

Rated 5 out of 5

Solid Product

I have had this product for nearly 3 years - simple to set up, switches between Mac & PC with two 2560x1440 displays and logitech wireless mouse / keyboard. Super easy to use - couldn't have hoped for a more trouble-free better product.

AlanJ

2020-12-29T19:00:00

Rated 4 out of 5

Works well with a multitude of devices

Using with a desktop PC, a laptop PC, and an MS Surface Pro. Monitor switch works perfectly even with the Surface Pro using an external 1920x1200 monitor. Seems to work with all USB devices so far, even an external soundcard. It is worth noting that using this device uncovered a firmware fault on the desktop graphics card which required a firmware update (not just drivers) from NVIDIA to rectify successful detection of the DisplayPort monitor, so it is worth checking that if you are having issues. Not the cheapest piece of equipment on the market but has done a great job for me so far and stops me from continuously breaking cables and cracking my head on the underside of my desk recabling everything all the time...

rdghickman

2020-06-30T20:00:00

Rated 1 out of 5

No AC Adapter Supplied + VGA Conxs

We purchased a SV431USB KVM to replace a Belkin USB KVM for 3 servers..To our surprise the AC 5v adapter is not included and has to be purchased separately... On top of it the input VGA ports on this KVM are not female VGA ports..they're male..meaning any cabling you may have used previously will need changing with a female plug at one end. Wish I had stuck with Belkin.

ControlIT

2020-04-29T20:00:00

Rated 4 out of 5

Reliable solid KVM

Works perfectly just wish there was a way to silence the beep every time you change inputs.

quas

2020-04-19T20:00:00

Rated 3 out of 5

Keyboard / Mouse not usable in boot manager

I'm using this product with a laptop and a workstation. On my laptop there is a boot manager (GRUB2) with a 8 seconds delay. Unfortunately keyboard and mouse cannot be used (are dead) until an operating system is loaed. This makes it impossible to select the boot manager entries. To do so I have to open the laptop lid and use the laptops keyboard.

JackAndDiane

2020-04-02T20:00:00

Rated 3 out of 5

No hot-keys, needs POWER.

Unfortunately I read that this unit supports hot-key switching as do my other units but it does not. Why not is anyone's guess. It also does not come with a power supply. With my back-lit keyboard attached it refuses to work with any of the three computers I have. Adding a 2A 5V power supply was not enough. A 2.5A 5V supply was needed before the unit would provide any keyboard or mouse to any of the three computers.

DrFranken

2020-02-28T19:00:00

Rated 2 out of 5

The only thing that works for me...regrettably.

I've had this for over a year and it behaves HORRIBLY when recovering from sleep and the supposedly USB2.0 hub is practically useless. For both of these situations, I believe that a firmware update would/could help, but...I don't see that happening. Still for my dual DP with two laptop setup, this is the only viable option. Did I mention it's WAY too expensive for what it provides? :-(

BjR69

2019-12-26T19:00:00

Rated 4 out of 5

Great Tool

I bought this KVM switch with both VGA & DVI support as I have not fully crossed over from VGA to DVI yet. It works well with the 3 desktops and 1 laptop I have connected to it. Only 1 issue, the Power Cool 768V2 keyboard is not seen by the machine that runs on Win10 32bit. However it runs okay on the machine with Win10 64bit, Ubuntu 18.04 64 bit & Win8 64 bit. Why do they not build these units with it's own power off switch?

ErrolG

2019-11-15T19:00:00

Rated 1 out of 5

Incompatible with DVI-D video card connector

There are various pin-outs for DVI, depending on the version. The cables are for DVI-I, which has more pins than DVI-D. It is therefore incompatible with the DVI-D connector of my video card. This should be noted on the box and product description.

Goggles

2019-11-07T19:00:00

Rated 1 out of 5

Not working with Ubuntu

I have 2 computers on Ubuntu, when I start the computer I have my screen, but if I switch to the second one and I switch back to the first, I don't have the screen anymore because the X server crash because the KVM doesn't respond to the displayport during switch... The KVM does not respect the display port standards...

Julien

2019-10-28T20:00:00

Rated 4 out of 5

Stable but with two glitches

Ive used this kvm-switch for 1.5 years now and it has been stable and robust so far with two 24" screens and four computers. So I would recommend it but with a warning. One glitch is that both screens go black for 1-2 seconds as the switch gives off a little blipping sound. Ive read on a forum that faulty DVI-cables could be the reason but I have checked several times and the cables are perfect. So I still endure randomness of the screens going black and turning back on. Sometimes without a single turn-off during a whole day and sometimes 3-5 times an hour. I would be so grateful for a solution for this. The second glitch is that I have tried to use larger 27" screens recently that DON'T have DVI-ports and I tried using several different DVI-Displayport adapters and DVI-VGA adapters. There is no signal. I would REALLY REALLY appreciate a solution to this problem because without a solution that would mean that I cant use any screens that dont have DVI. Please help.

Samiam

2019-07-25T20:00:00

Rated 5 out of 5

works well, easy to set up

just installed this, connecting two Dell Precision T3500 computers to a 30" Dell Monitor (2560x1600 resolution). Switching between the two computers is very easy and quick. The housing is nice, sturdy metal and doesn't slide on the desk when you press the selector switch. Keep in mind that your power saving settings may affect the one computer you are not accessing, it might go to sleep. The image on the monitor is clean and rock steady. Windows does make the funny sound it makes when a USB device is connected and disconnected, but that is not the fault of the KVM switch, just a Windows thing.

yet_another_john

2019-07-05T20:00:00

Rated 5 out of 5

Works as Advertised

If you know what you are doing, it is easy to set up and operate. Used this model for nearly a year. No issues.

pndjrpauln

2019-06-04T20:00:00

Rated 2 out of 5

Still bad Quality Control

Worked for about 2 days, and roughly 30 switches before Port 1 stopped working entirely. StarTech is one of the only companies to make this type of KVM, so it's unfortunate they're our only option. Get your stuff together StarTech. Your QC seriously needs to step it up.

CWilliams

2018-12-20T19:00:00

Rated 4 out of 5

Support for MST hub downstream

I have this combined with a MSTMDP123DP on the output port to switch between my desktop and laptop in my home office. It drives a pair of 1080P Dell S2419HGF monitors very nicely, though when combined with my RX580 either the monitors, graphics card or KVM won't allow for freesync through the DP path. Not a deal breaker but keep in mind that Freesync seems to be more commonly supported on HDMI and not DP links. This KVM also works best when one of the computers is not active. Switching disconnects the monitors, keyboard and mouse from one computer and connects them to another. Upside is that there's no emulation to mess with the PC's ability to use drivers for either mouse, keyboard or monitor but it is not for frequent switching between terminals. My use case is work laptop during the day, play desktop at night, so it works well for me. Your mileage may vary. USB3 support and leaving the monitors connected to the source would make this a perfect little KVM. All things considered is meets my needs very nicely.

Christopher

2018-11-12T19:00:00

Rated 1 out of 5

Well, one of the 2 works . . .

Despite my best efforts, computer #1 always detects as 1024 x 768 resolution (it's a super-high-end screen running the most recent NVIDIA powerhouse graphics card so, erm . . . yeah, I think this could do better).

MarcoC

2018-09-19T20:00:00

Rated 2 out of 5

Frustrating

Support about 40 of these and work most of the time but have a high level of failures from keyboard/mouse not working to screens not always detecting. Have to buy several replacements each year. Wish there was an alternative on the market

IT T.

2018-09-12T20:00:00

Rated 3 out of 5

Problems with Wireless Mouse and Keyboard

Just got this switch up and running but my Logitech Keyboard/mouse K330/M215 suffers delays unless on the desk 1' away from switch. When I use the devices from the keyboard drawer maybe 2' away I get delays.

rainman

2018-08-29T20:00:00

Rated 1 out of 5

Flashes on 3 different HP monitors

I bought 2 to do multiple setups for Deployment. Both have issues: flashing the screen (mostly off) and not catching a signal on start up so never seeing a screen. Lastly one of the two only works with two or less of the ports connected. I cannot find a firmware update or support for these issues.

KenRogrsRoasted

2018-08-13T20:00:00

Rated 1 out of 5

Fails to do 1080p

Failed to output 1080p switching back and forth between sources. I can switch the refresh rate and the KVM will work but as soon as I switch inputs and back again it stops working until I change the refresh rate agian. I've used StarTech KVMs without too many issues, from VGA to DVI flavors and this is the first to not work consistently.

BrandonG777

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StarTech KVM Switch Specifications

  • Audio

    No

  • Daisy-Chain

    No

  • KVM Ports

    2

  • Multi-Monitor

    No

  • PC Interface

    USB

  • PC Video Type

    VGA

  • Rack-Mountable

    No

  • Hot-Key Selection

    Yes

  • IP Control

    No

  • Maximum Analog Resolutions

    1920x1440

  • Maximum Number of Users

    1

  • Port Selection Support

    Push Button and Hotkeys

  • Console Interface(s)

    1 - VGA (15 pin; High Density D-Sub) Female
    2 - USB A (4 pin) Female

  • Host Connectors

    2 - USB B (4 pin) Female
    2 - VGA (15 pin; High Density D-Sub) Female

  • Other Interface(s)

    1 - RJ-45 Female
    2 - USB A (4 pin) Female

  • OS Compatibility

    OS independent; No additional software or drivers required

  • LED Indicators

    2 - PC Selection Indicators
    4 - Hot-Key Selection Indicators

  • Center Tip Polarity

    Positive

  • Input Current

    0.4A

  • Input Voltage

    100 - 240 AC

  • Output Current

    2.0A

  • Output Voltage

    5 DC

  • Plug Type

    M

  • Power Source

    AC Adapter Included

  • Humidity

    0-80% RH (Non-Condensing)

  • Operating Temperature

    0 to 60 deg. C / 32 to 140 deg. F

  • Storage Temperature

    -30 to 70 deg. C / -22 to 158 deg. F

  • Enclosure Type

    Steel

  • Certifications

    RoHS Complaint
    CE
    FC

  • Dimensions (H x L x W)

    1.7 x 6.5 x 3" / 4.32 x 16.51 x 7.62cm

  • Weight

    18.4oz / 521.63g

  • UPC Code

    065030858182

About StarTech KVM Switch

FEATURED REVIEWS

Love it

By hpJA

Had previous experience with a dual port DVI and VGA StarTech KVM and this one is just as good. Yes, the hot keys don't work with a wireless keyboard but I suspect that is more a function of the keyboard driver than the KVM switch, since the last unit I had also had a wireless keyboard and mouse and was flawless in its operations. It would be nice if the DVI connectors were just a smidgen (metric) further apart from one another, but these are minor issues that have nothing to do with the qual...

View full Review

Great KVM switch

By jonny_boy27

Works fine with Bizlink/Dell active Displayport -> dual-link DVI adapter. No perceptible extra noise on the audio channels, 60hz at 1440p no problems, switching is nice and responsive. Hotkeys work regardless of which USB port the keyboard is plugged into (even via additional USB hub).

Before you get entangled in a web of wires and the hassle of managing multiple devices, the SV231USBDDM 2-Port USB VGA KVM Switch offers a seamless solution to control two VGA and USB-equipped PCs with a single set of peripherals. Experience high-definition clarity with VGA resolutions up to 1920x1440, ensuring your projects and presentations are displayed in crisp, clear detail.

Crafted for immediate functionality, this KVM switch comes with included cables, providing a plug-and-play setup straight out of the box. The innovative USB Dynamic Device Mapping (DDM) technology and the robust Display Data Channel (DDC) work in tandem to drastically reduce switching lag-time. This ensures a smooth transition and compatibility with your connected display and input devices, streamlining your workflow and enhancing productivity.

Elevate your KVM performance with this switch's multi-core dedicated processing per channel. The cutting-edge USB DDM technology facilitates rapid switching between connected computers with virtually no delay. DDM maintains an uninterrupted communication channel with your USB peripherals, eliminating the wait time for systems to re-recognize devices upon switching.

The KVM switch is not just about speed; it also ensures continuous display detection with its All-time Display Data Channel (Full DDC) technology. With simple one-touch buttons for hot-key selection and a front panel push-button for computer selection, this device epitomizes user-friendly operation. Additionally, the integrated 2-port USB hub expands your connectivity, allowing for shared access to additional peripherals.

This KVM switch is a reliable and durable solution for anyone looking to streamline their multi-system setup. It's particularly efficient for environments such as call centers, help desks, educational settings, and home offices. It's also an ideal choice for professionals in the financial and banking sectors, graphic designers, and industries utilizing CAD/CAM applications, who require high-quality, efficient switching between systems.

In summary, the SV231USBDDM 2-Port USB VGA KVM Switch with DDM Fast Switching Technology is a high-quality, efficient, and user-friendly device that offers reliable and durable performance. It's an excellent choice for anyone looking to manage multiple devices with ease and precision.

StarTech KVM Switch Features

  • High-definition VGA KVM switch for controlling two USB-equipped PCs with one peripheral set
  • Features USB Dynamic Device Mapping (DDM) and Display Data Channel (DDC) for reduced lag time and improved device compatibility
  • Multi-core dedicated processing per channel for next-level KVM performance
  • One-touch buttons for hot-key selection & front panel push-button for seamless computer selection
  • Integrated 2-port USB hub for shared access to additional peripherals
  • Ideal for multi-system environments like call centers, help desks, educational settings, and professionals in graphic design and CAD/CAM applications

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Control two VGA USB computers with this 2-port KVM switch, saving space on your desk.
  • Enjoy fast switching between computers with Dynamic Device Mapping (DDM) KVM technology.
  • This USB VGA KVM supports high resolutions up to 1920x1440 for clear, crisp images.
  • Use hot-key or push-button controls for easy KVM access, increasing your workflow efficiency.
  • Includes all required KVM cables and a universal power adapter for simple setup and use.
  • Durable steel enclosure ensures long-lasting performance of this reliable KVM switch.

What's in the box:

  • StarTech 2 Port USB VGA KVM Switch
  • 2x 6' VGA USB KVM Cables
  • Firmware Upgrade Cable
  • Universal Power Adapter (NA/UK/EU)
  • Instruction Manual
  • StarTech 2 Year Warranty